PFAS Testing Solutions from Greyhound Chromatography. An overview of the products available that focus specifically on PFAS analysis.
As a global supplier of chromatography consumables and reference standards, Greyhound
Chromatography have brought together in this catalogue, the best products for the analysis of
PFAS compounds from the leading manufacturers in the field.
PFAS (per and polyfluoroalkyl substances) is the collective name for almost 5000 compounds
which have been produced since the 1940s. These compounds are not naturally occurring in
nature so the problems of global pollution are entirely the result of human activity. The utility of
these compounds has resulted in their rapid adoption which has resulted in them being found in
cookware, stain repellents, food packaging, cosmetics, firefighting foams and many
manufacturing processes.
PFAS are known as ‘forever chemicals’ in that they are very persistent in the environment and the
human body, resulting in increasing health risks including damage to immune systems, cancer and
thyroid hormone disruption.
Considerable research has been undertaken to develop products which are specifically suited for
the analysis of PFAS by HPLC, from sample preparation, through to analytical detection.
This brochure brings together many of the leading products used in PFAS analysis, including the
analysis of samples in water, soil, food and beverages as well as serum samples.
Grove Advanced Chemicals: Let Nature Take Care of Nature.
Grove is a company dedicated to the water treatment industry and specializes in the application of organic biodegradable coagulants from vegetal origin.
Tractus provides customers with a wide range of chemical and pharmaceutical products including Active Pharmaceutical Ingredients (APIs), pharmaceutical finished products, advanced pharmaceutical intermediates, and fine chemicals. Tractus also provides customers with fully integrated services from discovery to commercial manufacturing. As part of our fully integrated service packages, Tractus offers programs such as FTE program.
Pharmaceutical Products
● Active Pharmaceutical Ingredients (APIs)
● Pharmaceutical Finished Products
● Fine Chemicals
Integrated Services
● Drug Discovery Support Services
● Process Research and Development Services
● Analytical Services
● FTE Program
• Fragment Libraries
• Screening compounds
• Large collection of building blocks and intermediates
• PROTACs
• Custom and contract synthesis
• Scale up and route development
• Stable label synthesis
Alcoguard® H5941 – The sustainable bio-polymerSorel Muresan
Alcoguard® H5941 represents the second generation of hybrid polymers. Hybrid polymers are a marriage of selected polysaccharides and synthetic monomers, designed to prevent scale formation in detergent applications such as automatic dishwash, hard surface cleaning and laundry detergent systems. They are particularly effective at minimizing filming and spotting in zero phosphate automatic dishwash formulations and works as effective as synthetic co-polymers.
Trajan Scientific and Medical collaborates with academic and industry partners to develop and deliver innovative solutions to impact human wellbeing. Focusing on developing and commercialising technologies that enable analytical systems to be more selective, sensitive and specific, to improve biological, environmental or food related measurements. Global operations with hubs in Europe, USA, Asia and Austrailia serve over 100 countries with highly specialised products used in scientific analysis and laboratory consumables and devices for healthcare applications. Trajan’s comprehensive range of technical capabilities include precision glass fabrication and surface treatments, chemical synthesis and separation solutions, materials knowledge and integrated solutions for samples integrity, precision machining and design engineering, photonics sensing and device technologies, microscopy products, as well as clinical collection devices and methods.
Grove Advanced Chemicals: Let Nature Take Care of Nature.
Grove is a company dedicated to the water treatment industry and specializes in the application of organic biodegradable coagulants from vegetal origin.
Tractus provides customers with a wide range of chemical and pharmaceutical products including Active Pharmaceutical Ingredients (APIs), pharmaceutical finished products, advanced pharmaceutical intermediates, and fine chemicals. Tractus also provides customers with fully integrated services from discovery to commercial manufacturing. As part of our fully integrated service packages, Tractus offers programs such as FTE program.
Pharmaceutical Products
● Active Pharmaceutical Ingredients (APIs)
● Pharmaceutical Finished Products
● Fine Chemicals
Integrated Services
● Drug Discovery Support Services
● Process Research and Development Services
● Analytical Services
● FTE Program
• Fragment Libraries
• Screening compounds
• Large collection of building blocks and intermediates
• PROTACs
• Custom and contract synthesis
• Scale up and route development
• Stable label synthesis
Alcoguard® H5941 – The sustainable bio-polymerSorel Muresan
Alcoguard® H5941 represents the second generation of hybrid polymers. Hybrid polymers are a marriage of selected polysaccharides and synthetic monomers, designed to prevent scale formation in detergent applications such as automatic dishwash, hard surface cleaning and laundry detergent systems. They are particularly effective at minimizing filming and spotting in zero phosphate automatic dishwash formulations and works as effective as synthetic co-polymers.
Trajan Scientific and Medical collaborates with academic and industry partners to develop and deliver innovative solutions to impact human wellbeing. Focusing on developing and commercialising technologies that enable analytical systems to be more selective, sensitive and specific, to improve biological, environmental or food related measurements. Global operations with hubs in Europe, USA, Asia and Austrailia serve over 100 countries with highly specialised products used in scientific analysis and laboratory consumables and devices for healthcare applications. Trajan’s comprehensive range of technical capabilities include precision glass fabrication and surface treatments, chemical synthesis and separation solutions, materials knowledge and integrated solutions for samples integrity, precision machining and design engineering, photonics sensing and device technologies, microscopy products, as well as clinical collection devices and methods.
Collagen and bone fat are important resources in the food industry. It is essential that these primary products are odor- and taste free. Extensive de-odourization processes are used during bone fat & collagen processing to eliminate any off-flavors that might be present. Regular sensory evaluation performed by specially trained panels in combination with GC-MS analysis ensures product quality is not compromised.
MAP or Modified Atmosphere Packaging
is a widely used technique of preservation
when it comes to food packaging. MAP
technology like that in a tray sealing
machine is gaining more and more
popularity as a method of preserving
freshness and lengthening the shelf life of
fresh foods - fruits, vegetables, meat,
dairy products and more.
Honeywell Research Chemicals PresentationAlexWood93
Established in 1981,Greyhound Chromatography has been supplying high quality Chromatography consumables to Research and Analysis Laboratories around the world for 38 years. Greyhound's Managing Director, Paul Massie founded the company which operates from its UK warehouse and office facility, located in Birkenhead, Merseyside.
Greyhound supplies Certified Reference Standards and Materials, Research Chemicals; including Solvents and Reagents and Laboratory consumables. New products are constantly added to Greyhound's e-commerce website, be sure to register to the website to view product prices.
Greyhound’s extensive range covers all areas of Environmental, Petrochemical, Food, Fragrance, Forensics, Chemical and Pharmaceutical analysis, holding stock of many popular products for prompt delivery via our extensive logistics network.
Honeywell Research Chemicals, Distributed by Greyhound Chromatography and Allied Chemicals.
Honeywell has over 200 years of experience in consistently and reliably producing high-quality solvents and analytical reagents. The majority of Honeywell Research Chemicals are produced in ISO 9001 and ISO 14001 certified facilities in Seelze, Germany and Muskegon, Michigan.
Sanitizer Application for Postharvest Waterawszelak
Discover the options that are out there, the pros and cons of commonly used sanitizers, the National Organic Program standards for postharvest sanitizers, interpreting sanitizer labels, how to monitor their concentrations and more.
Greyhound Chromatography's trademarked Q-Range Chromatography Laboratory products include Syringe Filters, Vials, Caps and Closures, Seals., HPLC Pump Spares, HPLC Columns, Capillary Columns, Membrane filters.
Established in 1981,Greyhound Chromatography has been supplying high quality Chromatography consumables to Research and Analysis Laboratories around the world for 40 years. Greyhound's Managing Director, Paul Massie founded the company which operates from its UK warehouse and office facility, located in Birkenhead, Merseyside.
Greyhound supplies Certified Reference Standards and Materials, Research Chemicals; including Solvents and Reagents and Laboratory consumables. New products are constantly added to Greyhound's e-commerce website, be sure to register to the website to view product prices.
Greyhound prides itself on personal service which provides prompt, efficient, cost-effective, safe delivery of all products. With state-of-the art facilities and highly trained staff, Greyhound provides technical advice and distribution of Chromatography consumables across all disciplines. Our service is designed to provide a wide range of products, to help our clients to achieve excellent, cost-effective results. Greyhound manufactures its own range of Capillary Columns, Syringe Filters, SPE Cartridges and HPLC Columns, the 'Q' Range, as well as representing the industry’s best known manufacturers.
By working with the industry’s best known manufacturers we are able to tailor products to customer requirements and distribute products on behalf of 3M, AIT, Biosolve; BP (British Pharmacopeia), Cerilliant; Chem Service (Environmental and Pesticides); Chiron; Chromacol; EP Scientific; Extrasynthese, Gas Arc; Hach Lange, Hamilton; High Purity Standards; Honeywell, IDEX; Jour Research; Larodan Fine Chemicals; Macherey-Nagel; Merck, National Scientific; NIST; Paragon Scientific, PAH Reference Standards; Peak Scientific, Pfaltz and Bauer; Regis Technologies; Rheodyne; RT Corporation; SGE analytical, SGT Filters; Sigma Aldrich, Fluka and Supelco; Silicycle, Swagelok; TCI (Tokyo Chemical Industry); Thermo Scientific, Trajan, Upchurch; USP (United States Pharmacopeia); Vici
We are an ISO 9001:2008 Certified Company established in 2009 manufactures high quality plastic labware with excellent service levels through proper accreditation and certification. We make superior quality laboratory plasticwares of International standard using virgin production material under stringent quality control conditions. Our product range has been segregated in seven different sub-categories that include Centrifuge Ware, Liquid Handling Consumables, Cryo Ware, Multipuprpose Racks & Boxes, General Laboratory Products, Microscopy Family and Organizers. New products across all sub categories that include Microscopy products, Racked & Refill Pipette tips, unique range of rotator and multi-combination racks together with high quality Cryogenic Vials.
Our product range find place in all kind of laboratories located worldwide. They are further extensively used in below categories:
Universities
Research Institutes
Environmental testing labs (sampling)
Clinical Research Labs
Clinical Diagnostic Labs
Forensic Science Labs
Public Health Labs
Bio repositories (Especially Specimen containers)
Micro Biology Labs
Biotechnology Labs
Life Science Labs
Stem Cell Research
Hospital & Diagnostic centres
Industrial Labs
A. Pharmaceuticals
B. Food Beverage (Quality, R&D, Manufacturing process labs)
C. Chemical Petroleum processEnvironment and Process Control IndustriesSchool & College Labs.
To know more visit our website www.abdoslabware.com
With 35+ years of experience across the food science and packaging spectrum, Dr Claire Sand through her company, Packaging Technology & Research, offers clients solutions using Strategy, Technology, Consulting and Coaching.
Want to know more about how this article affects your business? Reach out to Dr. Sand on LinkedIn - https://www.linkedin.com/in/clairekoelschsand
Want to keep learning from Dr. Sand? View more of her presentations and articles at https://www.packagingtechnologyandresearch.com/insights.html
Dr. Claire Sand | Owner, Packaging Technology & Research, LLC; Adjunct Professor, CalPoly and Michigan State University; Columnist for Food Technology Magazine and Packaging Digest http://www.packagingtechnologyandresearch.com/
The 12 PRINCIPLES of sustainable Chemistry - LANXESS is one of the world’s leading manufacturers of synthetic iron oxide and chromium oxide pigments with production plants on five continents. The largest iron oxide production plant in the world is located at the LANXESS site in Krefeld-Uerdingen, Germany. Over 350,000 metric tons of iron oxide and chromium oxide pigments are manufactured at sites in Germany, Brazil and China. This capacity is constantly being expanded. The global network is complemented by additional mixing and milling plants in Australia, China, United Kingdom, Spain and the United States. This ensures global availability of our products. More under www.bayferrox.com
OECD Global Forum on the Environment dedicated to Per- and Polyfluoroalkyl Su...OECD Environment
PFAS, which stands for per- and polyfluoroalkyl substances, are a diverse group of chemicals that include PFCAs, PFOA, PFSAs, PFHxS, and thousands of others. These chemicals have been in commercial production since the 1950s and are now widely used in consumer and industrial applications. One characteristic of PFAS is their persistence in the environment, as they are extremely resistant to degradation. PFAS have emerged as contaminants of global concern because of their potential to accumulate in the human body and food chains.
On 12-13 February 2024, a wide range of stakeholders, including governments, industry, non-governmental organisations (NGOs), and academics came together to discuss various topics related to PFAS. These topics covered areas such as country risk management approaches, innovation challenges for finding safer alternatives, effective risk communication strategies, monitoring techniques, waste management, and approaches to managing contamination.
Appreciated by customers across the nation for supplying, trading and wholesaling a broad array of high quality pharmaceutical hygiene & cleanRoom
products, June Enterprises started its operations in December 2013.
In a short span of time, the company expanded its breadth of operations to provide CleanRoom Products to the Indian pharmaceutical industry &
neighboring countries.
The product range offered by June Enterprises includes: – Sterilization Monitoring & Validation Products, ATCC Culture, Cleanroom Garments &
Accessories, Cleanroom Supplies, Critical Cleaning Products, Products for Food & Facilities, Sterilization Packaging & Sealing Products, Products for
Stores & Warehouses, USP Class Silicone Tubing among others.
In order to ensure high standards of quality, the offered range of Cleanroom Products is procured and sourced from trusted and reliable Leaders in their
® ® respective product ranges for example Sterilization Products by Mesa Labs, Cleaning & disinfectants by Contec & ATCC by Microbiologics.
With years of experience, expertise and a proven track-record of helping many companies with its CleanRoom Products & Sterilization needs, June
Enterprises has established an enviable position in the PHARMA, FOOD & HOSPITAL segments.
JUNE Enterprises is an ISO 9001:2015 certified company.
Learn More: https://www.juneenterprises.com/
Honeywell offer a wide range of Research Chemicals under their own brands Burdick & Jackson™, Fluka™, Honeywell™,Riedel-de-Haën™, Chromasolv™, Hydranal™, LabReady™ Blends, TraceSLECT™. Covering all applications, including, Bioanalysis, Biosynthesis, Chemical Synthesis, Chromatography, Electrophoresis, Karl Fischer Titration, Octane Determination, Spectroscopy, Titration, Trace Analysis and Wet Chemistry.
Honeywell offer a wide range of Research Chemicals under their own brands Burdick & Jackson™, Fluka™, Honeywell™,Riedel-de-Haën™, Chromasolv™, Hydranal™, LabReady™ Blends, TraceSLECT™. Covering all applications, including, Bioanalysis, Biosynthesis, Chemical Synthesis, Chromatography, Electrophoresis, Karl Fischer Titration, Octane Determination, Spectroscopy, Titration, Trace Analysis and Wet Chemistry.
Established in 1981,Greyhound Chromatography has been supplying high quality Chromatography consumables to Research and Analysis Laboratories around the world for 38 years. Greyhound's Managing Director, Paul Massie founded the company which operates from its UK warehouse and office facility, located in Birkenhead, Merseyside.
Greyhound supplies Certified Reference Standards and Materials, Research Chemicals; including Solvents and Reagents and Laboratory consumables. New products are constantly added to Greyhound's e-commerce website, be sure to register to the website to view product prices.
Greyhound’s extensive range covers all areas of Environmental, Petrochemical, Food, Fragrance, Forensics, Chemical and Pharmaceutical analysis, holding stock of many popular products for prompt delivery via our extensive logistics network.
Greyhound prides itself on personal service which provides prompt, efficient, cost-effective, safe delivery of all products. With state-of-the art facilities and highly trained staff, Greyhound provides technical advice and distribution of Chromatography consumables across all disciplines. Our service is designed to provide a wide range of products, to help our clients to achieve excellent, cost-effective results. Greyhound manufactures its own range of Capillary Columns, Syringe Filters, SPE Cartridges and HPLC Columns, the 'Q' Range, as well as representing the industry’s best known manufacturers.
This research mainly focus on developing an efficient product that will be effective for remediation during groundwater treatment.
It gives in-depth analysis on in-situ oxidation techniques for groundwater remediation.
PFAS Testing Solutions from Greyhound Chromatography.
As a global supplier of chromatography consumables and reference standards, Greyhound
Chromatography have brought together in this catalogue, the best products for the analysis of
PFAS compounds from the leading manufacturers in the field.
PFAS (per and polyfluoroalkyl substances) is the collective name for almost 5000 compounds
which have been produced since the 1940s. These compounds are not naturally occurring in
nature so the problems of global pollution are entirely the result of human activity. The utility of
these compounds has resulted in their rapid adoption which has resulted in them being found in
cookware, stain repellents, food packaging, cosmetics, firefighting foams and many
manufacturing processes.
PFAS are known as ‘forever chemicals’ in that they are very persistent in the environment and the
human body, resulting in increasing health risks including damage to immune systems, cancer and
thyroid hormone disruption.
Considerable research has been undertaken to develop products which are specifically suited for
the analysis of PFAS by HPLC, from sample preparation, through to analytical detection.
This brochure brings together many of the leading products used in PFAS analysis, including the
analysis of samples in water, soil, food and beverages as well as serum samples.
PFAS Focus presented by Greyhound Chromatography . Details of products that are available, for laboratory use, for the testing and analysis of PFAS.
Products available from Greyhound Chromatography under their own brand the Q-Range, Reference Standards and Materials from Wellington Laboratories and Chromatography consumables from Macherey-Nagel.
Reference Standards and materials are also available from Chem Service Inc., High Purity Standards and HPC.
Greyhound’s extensive range covers all areas of Environmental, Petrochemical, Food, Fragrance, Forensics, Chemical and Pharmaceutical analysis, holding stock of many popular products for prompt delivery via our extensive logistics network.
Greyhound prides itself on personal service which provides prompt, efficient, cost-effective, safe delivery of all products. With state-of-the art facilities and highly trained staff, Greyhound provides technical advice and distribution of Chromatography consumables across all disciplines. Our service is designed to provide a wide range of products, to help our clients to achieve excellent, cost-effective results. Greyhound manufactures its own range of Capillary Columns, Syringe Filters, SPE Cartridges and HPLC Columns, the 'Q' Range, as well as representing the industry’s best known manufacturers.
Established in 1981, Greyhound Chromatography has been supplying high quality Chromatography consumables to Research and Analysis laboratories around the world for over 40 years. Greyhound's Managing Director, Paul Massie, founded the company which operates from its UK warehouse and office facility, located in Birkenhead, Merseyside.
Greyhound Chromatography is a leading global manufacturer and distributor of the highest quality chromatography columns, consumables, certified reference standards and materials, research chemicals, solvents, reagents and laboratory consumables available today.
Greyhound supplies scientists working in all disciplines, including HPLC and Gas Chromatography. Greyhound Chromatography is probably the leading single source of chromatography products and chemical standards anywhere in the world.
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Collagen and bone fat are important resources in the food industry. It is essential that these primary products are odor- and taste free. Extensive de-odourization processes are used during bone fat & collagen processing to eliminate any off-flavors that might be present. Regular sensory evaluation performed by specially trained panels in combination with GC-MS analysis ensures product quality is not compromised.
MAP or Modified Atmosphere Packaging
is a widely used technique of preservation
when it comes to food packaging. MAP
technology like that in a tray sealing
machine is gaining more and more
popularity as a method of preserving
freshness and lengthening the shelf life of
fresh foods - fruits, vegetables, meat,
dairy products and more.
Honeywell Research Chemicals PresentationAlexWood93
Established in 1981,Greyhound Chromatography has been supplying high quality Chromatography consumables to Research and Analysis Laboratories around the world for 38 years. Greyhound's Managing Director, Paul Massie founded the company which operates from its UK warehouse and office facility, located in Birkenhead, Merseyside.
Greyhound supplies Certified Reference Standards and Materials, Research Chemicals; including Solvents and Reagents and Laboratory consumables. New products are constantly added to Greyhound's e-commerce website, be sure to register to the website to view product prices.
Greyhound’s extensive range covers all areas of Environmental, Petrochemical, Food, Fragrance, Forensics, Chemical and Pharmaceutical analysis, holding stock of many popular products for prompt delivery via our extensive logistics network.
Honeywell Research Chemicals, Distributed by Greyhound Chromatography and Allied Chemicals.
Honeywell has over 200 years of experience in consistently and reliably producing high-quality solvents and analytical reagents. The majority of Honeywell Research Chemicals are produced in ISO 9001 and ISO 14001 certified facilities in Seelze, Germany and Muskegon, Michigan.
Sanitizer Application for Postharvest Waterawszelak
Discover the options that are out there, the pros and cons of commonly used sanitizers, the National Organic Program standards for postharvest sanitizers, interpreting sanitizer labels, how to monitor their concentrations and more.
Greyhound Chromatography's trademarked Q-Range Chromatography Laboratory products include Syringe Filters, Vials, Caps and Closures, Seals., HPLC Pump Spares, HPLC Columns, Capillary Columns, Membrane filters.
Established in 1981,Greyhound Chromatography has been supplying high quality Chromatography consumables to Research and Analysis Laboratories around the world for 40 years. Greyhound's Managing Director, Paul Massie founded the company which operates from its UK warehouse and office facility, located in Birkenhead, Merseyside.
Greyhound supplies Certified Reference Standards and Materials, Research Chemicals; including Solvents and Reagents and Laboratory consumables. New products are constantly added to Greyhound's e-commerce website, be sure to register to the website to view product prices.
Greyhound prides itself on personal service which provides prompt, efficient, cost-effective, safe delivery of all products. With state-of-the art facilities and highly trained staff, Greyhound provides technical advice and distribution of Chromatography consumables across all disciplines. Our service is designed to provide a wide range of products, to help our clients to achieve excellent, cost-effective results. Greyhound manufactures its own range of Capillary Columns, Syringe Filters, SPE Cartridges and HPLC Columns, the 'Q' Range, as well as representing the industry’s best known manufacturers.
By working with the industry’s best known manufacturers we are able to tailor products to customer requirements and distribute products on behalf of 3M, AIT, Biosolve; BP (British Pharmacopeia), Cerilliant; Chem Service (Environmental and Pesticides); Chiron; Chromacol; EP Scientific; Extrasynthese, Gas Arc; Hach Lange, Hamilton; High Purity Standards; Honeywell, IDEX; Jour Research; Larodan Fine Chemicals; Macherey-Nagel; Merck, National Scientific; NIST; Paragon Scientific, PAH Reference Standards; Peak Scientific, Pfaltz and Bauer; Regis Technologies; Rheodyne; RT Corporation; SGE analytical, SGT Filters; Sigma Aldrich, Fluka and Supelco; Silicycle, Swagelok; TCI (Tokyo Chemical Industry); Thermo Scientific, Trajan, Upchurch; USP (United States Pharmacopeia); Vici
We are an ISO 9001:2008 Certified Company established in 2009 manufactures high quality plastic labware with excellent service levels through proper accreditation and certification. We make superior quality laboratory plasticwares of International standard using virgin production material under stringent quality control conditions. Our product range has been segregated in seven different sub-categories that include Centrifuge Ware, Liquid Handling Consumables, Cryo Ware, Multipuprpose Racks & Boxes, General Laboratory Products, Microscopy Family and Organizers. New products across all sub categories that include Microscopy products, Racked & Refill Pipette tips, unique range of rotator and multi-combination racks together with high quality Cryogenic Vials.
Our product range find place in all kind of laboratories located worldwide. They are further extensively used in below categories:
Universities
Research Institutes
Environmental testing labs (sampling)
Clinical Research Labs
Clinical Diagnostic Labs
Forensic Science Labs
Public Health Labs
Bio repositories (Especially Specimen containers)
Micro Biology Labs
Biotechnology Labs
Life Science Labs
Stem Cell Research
Hospital & Diagnostic centres
Industrial Labs
A. Pharmaceuticals
B. Food Beverage (Quality, R&D, Manufacturing process labs)
C. Chemical Petroleum processEnvironment and Process Control IndustriesSchool & College Labs.
To know more visit our website www.abdoslabware.com
With 35+ years of experience across the food science and packaging spectrum, Dr Claire Sand through her company, Packaging Technology & Research, offers clients solutions using Strategy, Technology, Consulting and Coaching.
Want to know more about how this article affects your business? Reach out to Dr. Sand on LinkedIn - https://www.linkedin.com/in/clairekoelschsand
Want to keep learning from Dr. Sand? View more of her presentations and articles at https://www.packagingtechnologyandresearch.com/insights.html
Dr. Claire Sand | Owner, Packaging Technology & Research, LLC; Adjunct Professor, CalPoly and Michigan State University; Columnist for Food Technology Magazine and Packaging Digest http://www.packagingtechnologyandresearch.com/
The 12 PRINCIPLES of sustainable Chemistry - LANXESS is one of the world’s leading manufacturers of synthetic iron oxide and chromium oxide pigments with production plants on five continents. The largest iron oxide production plant in the world is located at the LANXESS site in Krefeld-Uerdingen, Germany. Over 350,000 metric tons of iron oxide and chromium oxide pigments are manufactured at sites in Germany, Brazil and China. This capacity is constantly being expanded. The global network is complemented by additional mixing and milling plants in Australia, China, United Kingdom, Spain and the United States. This ensures global availability of our products. More under www.bayferrox.com
OECD Global Forum on the Environment dedicated to Per- and Polyfluoroalkyl Su...OECD Environment
PFAS, which stands for per- and polyfluoroalkyl substances, are a diverse group of chemicals that include PFCAs, PFOA, PFSAs, PFHxS, and thousands of others. These chemicals have been in commercial production since the 1950s and are now widely used in consumer and industrial applications. One characteristic of PFAS is their persistence in the environment, as they are extremely resistant to degradation. PFAS have emerged as contaminants of global concern because of their potential to accumulate in the human body and food chains.
On 12-13 February 2024, a wide range of stakeholders, including governments, industry, non-governmental organisations (NGOs), and academics came together to discuss various topics related to PFAS. These topics covered areas such as country risk management approaches, innovation challenges for finding safer alternatives, effective risk communication strategies, monitoring techniques, waste management, and approaches to managing contamination.
Appreciated by customers across the nation for supplying, trading and wholesaling a broad array of high quality pharmaceutical hygiene & cleanRoom
products, June Enterprises started its operations in December 2013.
In a short span of time, the company expanded its breadth of operations to provide CleanRoom Products to the Indian pharmaceutical industry &
neighboring countries.
The product range offered by June Enterprises includes: – Sterilization Monitoring & Validation Products, ATCC Culture, Cleanroom Garments &
Accessories, Cleanroom Supplies, Critical Cleaning Products, Products for Food & Facilities, Sterilization Packaging & Sealing Products, Products for
Stores & Warehouses, USP Class Silicone Tubing among others.
In order to ensure high standards of quality, the offered range of Cleanroom Products is procured and sourced from trusted and reliable Leaders in their
® ® respective product ranges for example Sterilization Products by Mesa Labs, Cleaning & disinfectants by Contec & ATCC by Microbiologics.
With years of experience, expertise and a proven track-record of helping many companies with its CleanRoom Products & Sterilization needs, June
Enterprises has established an enviable position in the PHARMA, FOOD & HOSPITAL segments.
JUNE Enterprises is an ISO 9001:2015 certified company.
Learn More: https://www.juneenterprises.com/
Honeywell offer a wide range of Research Chemicals under their own brands Burdick & Jackson™, Fluka™, Honeywell™,Riedel-de-Haën™, Chromasolv™, Hydranal™, LabReady™ Blends, TraceSLECT™. Covering all applications, including, Bioanalysis, Biosynthesis, Chemical Synthesis, Chromatography, Electrophoresis, Karl Fischer Titration, Octane Determination, Spectroscopy, Titration, Trace Analysis and Wet Chemistry.
Honeywell offer a wide range of Research Chemicals under their own brands Burdick & Jackson™, Fluka™, Honeywell™,Riedel-de-Haën™, Chromasolv™, Hydranal™, LabReady™ Blends, TraceSLECT™. Covering all applications, including, Bioanalysis, Biosynthesis, Chemical Synthesis, Chromatography, Electrophoresis, Karl Fischer Titration, Octane Determination, Spectroscopy, Titration, Trace Analysis and Wet Chemistry.
Established in 1981,Greyhound Chromatography has been supplying high quality Chromatography consumables to Research and Analysis Laboratories around the world for 38 years. Greyhound's Managing Director, Paul Massie founded the company which operates from its UK warehouse and office facility, located in Birkenhead, Merseyside.
Greyhound supplies Certified Reference Standards and Materials, Research Chemicals; including Solvents and Reagents and Laboratory consumables. New products are constantly added to Greyhound's e-commerce website, be sure to register to the website to view product prices.
Greyhound’s extensive range covers all areas of Environmental, Petrochemical, Food, Fragrance, Forensics, Chemical and Pharmaceutical analysis, holding stock of many popular products for prompt delivery via our extensive logistics network.
Greyhound prides itself on personal service which provides prompt, efficient, cost-effective, safe delivery of all products. With state-of-the art facilities and highly trained staff, Greyhound provides technical advice and distribution of Chromatography consumables across all disciplines. Our service is designed to provide a wide range of products, to help our clients to achieve excellent, cost-effective results. Greyhound manufactures its own range of Capillary Columns, Syringe Filters, SPE Cartridges and HPLC Columns, the 'Q' Range, as well as representing the industry’s best known manufacturers.
This research mainly focus on developing an efficient product that will be effective for remediation during groundwater treatment.
It gives in-depth analysis on in-situ oxidation techniques for groundwater remediation.
Similar to PFAS TESTING SOLUTIONS FROM GREYHOUND CHROMATOGRAPHY (20)
PFAS Testing Solutions from Greyhound Chromatography.
As a global supplier of chromatography consumables and reference standards, Greyhound
Chromatography have brought together in this catalogue, the best products for the analysis of
PFAS compounds from the leading manufacturers in the field.
PFAS (per and polyfluoroalkyl substances) is the collective name for almost 5000 compounds
which have been produced since the 1940s. These compounds are not naturally occurring in
nature so the problems of global pollution are entirely the result of human activity. The utility of
these compounds has resulted in their rapid adoption which has resulted in them being found in
cookware, stain repellents, food packaging, cosmetics, firefighting foams and many
manufacturing processes.
PFAS are known as ‘forever chemicals’ in that they are very persistent in the environment and the
human body, resulting in increasing health risks including damage to immune systems, cancer and
thyroid hormone disruption.
Considerable research has been undertaken to develop products which are specifically suited for
the analysis of PFAS by HPLC, from sample preparation, through to analytical detection.
This brochure brings together many of the leading products used in PFAS analysis, including the
analysis of samples in water, soil, food and beverages as well as serum samples.
PFAS Focus presented by Greyhound Chromatography . Details of products that are available, for laboratory use, for the testing and analysis of PFAS.
Products available from Greyhound Chromatography under their own brand the Q-Range, Reference Standards and Materials from Wellington Laboratories and Chromatography consumables from Macherey-Nagel.
Reference Standards and materials are also available from Chem Service Inc., High Purity Standards and HPC.
Greyhound’s extensive range covers all areas of Environmental, Petrochemical, Food, Fragrance, Forensics, Chemical and Pharmaceutical analysis, holding stock of many popular products for prompt delivery via our extensive logistics network.
Greyhound prides itself on personal service which provides prompt, efficient, cost-effective, safe delivery of all products. With state-of-the art facilities and highly trained staff, Greyhound provides technical advice and distribution of Chromatography consumables across all disciplines. Our service is designed to provide a wide range of products, to help our clients to achieve excellent, cost-effective results. Greyhound manufactures its own range of Capillary Columns, Syringe Filters, SPE Cartridges and HPLC Columns, the 'Q' Range, as well as representing the industry’s best known manufacturers.
Established in 1981, Greyhound Chromatography has been supplying high quality Chromatography consumables to Research and Analysis laboratories around the world for over 40 years. Greyhound's Managing Director, Paul Massie, founded the company which operates from its UK warehouse and office facility, located in Birkenhead, Merseyside.
Greyhound Chromatography is a leading global manufacturer and distributor of the highest quality chromatography columns, consumables, certified reference standards and materials, research chemicals, solvents, reagents and laboratory consumables available today.
Greyhound supplies scientists working in all disciplines, including HPLC and Gas Chromatography. Greyhound Chromatography is probably the leading single source of chromatography products and chemical standards anywhere in the world.
What are Reference Standards?
A pharmaceutical reference standard is a highly characterized material
suitable to test the identity, strength, quality and purity of substances
for pharmaceutical use and medicinal products.
The reference standard is the test, combination of tests, or
procedure that is considered the best available method of categorizing
participants in a study of diagnostic test accuracy as having or not
having a target condition.
Greyhound Chromatography supplies a large range of pre-prepared
and custom made chromatography standards from a number of
leading manufacturers, including Chem Service, Cifga, Extrasynthese,
High Purity Standards, Honeywell (Fluka), Laradon, Merck (Sigma
Aldrich, Supelco), Paragon Scientific and Wellington Laboratories.
Greyhound Chromatography is delighted to represent Merck /Sigma as a principal
distributor and all products from the company are available through Greyhound. Sigma
Aldrich Laboratory & Production Materials, including Supelco Analytical Products developed
by analytical chemists covers a broad range of analytical solutions and every product
undergoes meticulous quality control to maintain the integrity of your testing protocols.
How to Order MERCK/Sigma Aldrich Products from Greyhound Chromatography
MERCK / Sigma Aldrich products can be found under the MERCK portfolio. This is available on
our secure website—you can browse the current product list HERE. Please send your quote
request to sales@greyhoundchrom.com There may be a discount available for bulk
purchases or repeat orders.
High Purity Standards has proudly served the scientific community
for the past twenty years with high quality spectrometric
standards and reference materials for AAS, ICP, ICP-MS, GC,
GC-MS and IC, and has now expanded their stocked reference
materials to include ISO Guide 34 multi-component organic
reference materials.
Approximately one half of High Purity Standards' business is in the
preparation of custom blends and difficult to prepare special
mixtures.
New products of note include expanded spiked filter products in
addition to organic reference materials designed to meet EPA
testing requirements and additional products from customer
requests.
Browse High Purity Standards HERE. There may be a discount
available for bulk purchases or repeat orders, please request a
quotation by emailing sales@greyhoundchrom.com
Wellington are committed to the distribution of quality products as well as the
maintenance of excellent customer service. In fact, in order to provide you with the best
possible service, Wellington Laboratories now have three ISO certifications (ISO
9001:2015, ISO/IEC 17025:2005, and ISO 17034:2016) which cover all aspects of
planning, production, testing, distribution, and post-distribution service. These certificates
allow us to monitor and maintain the highest level of quality and service .
Is Vaping the right solution for giving up smoking nicotine products?
Is Vaping just a case of smoke and mirrors?
Should we be concerned about health issues caused by vaping?
With the vast increase in Vaping being led by the thought
it can stop a users addiction of smoking, do we really have
all the facts we need to determine if this is the truth?
Although e-cigarettes date back to being invented in the
1920’s, it wasn’t until the mid 2000’s that a Chinese
company, owned by pharmacist Hon Lik, created the first
modern vaping device to be sold on the high street.
Recently there has been a lot of media coverage regarding
e-cigarettes and the affect that they have on human
health, there is almost no proven scientific evidence to
say that vaping is better for people than smoking.
We are all aware that smoking is able to cause many known
illnesses and can commonly lead to death, but new stories
have come to light recently, show that vaping has a huge
detrimental effect in the same way that smoking does.
Laws have been implemented in the US since 2016 regarding
the use of vape devices which states it is illegal to
sell e-cigarettes to minors but advertising to adults is
still permitted. There isn’t as much concern that vaping
will effect children in the UK in the same way, as we
have strict limits on the levels of nicotine that can be
included in e-liquids, whereas the US do not.
Considering e-cigarettes were introduced to the market as
a less harmful alternative to smoking, there has been an
increased concern that people have taken up vaping
although they never smoked to begin with.
Electronic Cigarettes (A vape) are small devices that
use different flavoured nicotine oils, also known as
e-juices, to create smoke in a vapour form.
A vaping device does not include or contain tobacco and
therefore doesn’t allow you to produce carbon monoxide
or tar that can be formed from resins that are active
in cigarettes.
How is vape oil (e-juice) made?
Vape juices are generally made by mixing together
different flavours and nicotine with a solvent which
is usually propylene glycol.
Sometimes people will optionally use vegetable
glycerine. The solvent that is used within the mix is
the main chemical that is included in the vape oil.
Propylene glycol is an organic chemical compound that
is most commonly used within foods as an additive to
improve the flavour, colour or texture of different
products.
Currently in the UK, there is estimated to be 3.6 million people who are vaping. It is becoming
more and more common that people have taken up vaping in place of their addictive cigarette
habit, as they believe that this will be “better” for them in the long run. It has been proven
that if there is repeated high exposure to this vapour then very harmful risks could occur.
Recently there have been many cases related to e-cigarettes and the effects that they can cause.
Chem Service, Inc. produces high purity standards for use as reference
materials and for other laboratory purposes. More than 95% of the Standards Grade
materials have a certified purity of 98.0% or greater and do not require purity
corrections when preparing solutions for use with EPA, USTM, UST, and numerous
other international methods. You can trust that Chem Service high purity standards
are a quality product.
Why is Pesticide Testing Important?
Pesticides are an effective tool used by farmers all across the globe to prevent insects, rodents and other pests from
eating or spoiling their crops. Although, because these chemical compounds are deadly to these pests, it has been
important to ensure that pesticides do not have poisonous effects past insects to humans and other aspects of nature.
However, it can be difficult for communities to police pesticides and it is not as effective to test pesticide use after it
has already been applied to a field or farm. For these reasons, there have been a number of international bodies that
have joined together to create testing guidelines to ensure that the pesticides used in the U.S., Australia, Africa and
anywhere else will not result in unwanted repercussions for humans nearby. Pesticide users and manufacturers can
use certified and approved standards to check whether their pesticides meet quality and specification requirements
to work effectively without harmful consequences.
Countries Work Towards a Common Goal
Since the 1960 formation of the Convention on the Organization for Economic Co-operation and Development,
countries including the U.S, U.K., Mexico, Japan, Chile and Germany have created a set of pesticide testing protocols.
The OECD pointed to nearly 100 testing methods for the testing of these chemicals. The international group both
creates guidelines for pesticide uses as well as tests the residue of pesticides in OECD and non-OECD countries to
study their effects and determine further usage plans.
Separate from the OECD, the Collaborative International Pesticide Analytical Council, the Food and Agriculture
Organization of the United Nations, and the World Health Organization also work to regulate safe pesticide use on an
international scale. In a 2005 report published by all three organizations outlining the quality to be used in national
laboratories, they explained the importance of using standards from approved international providers.
Protecting Bees From Pesticides
As far as humans are concerned, bees are one of the most important
insects. Though they aren't the only type of bug that pollinates plants,
they are one of the most common. Bees ensure that plants produce
fruits and vegetables. Without them, whole industries would die and
many would be without a source of food. However, pesticides meant to
rid crops of other harmful insects are having an adverse effect on bee
populations around the world.
PFAS (per- and polyfluoroalkyl
substances), known as “forever
chemicals” are found in everyday
objects. Food Packaging, paints,
cosmetics, wood lacquers, sealants ,
solar panels, fire fighting foams,
artificial grass and many more
seemingly innocent products.
Generally used to prevent corrosion
and make products waterproof and
stain-resistant they are present in our
everyday life. Unfortunately they do
not break down in our environment
and as a consequence are “forever
present”. Greyhound Chromatography provides a wide range of Chromatography related products for testing and analysis of PFAS and many other 'forever chemicals'.
Are all PFAS toxic to humans?
This is a question that remains to be answered.
Research over many years will provide the data
needed to analyse the impact PFAS has on the
environment. Some PFAS, sometimes used in
construction materials are not released into the
air or water table when it rains but they are
released when buildings are demolished and the
debris is sent to landfill.
Some PFAs are of a more immediate concern as they are released into the environment when they
are used or when they come into contact with water. Small residual PFAS molecules wash off
easily and are carried to the soil, air and water very quickly. Many short-chain PFAS dissolve in
water. Gradually, over time, the PFAS sinks to the depths of oceans and rivers, settles in the
sediment and becomes a concern as marine life feeds on plants and other animals that are in the
sediment. Some PFAS such as PFOA act like detergents, they repel water and rise back to the
surface, they are then released into the atmosphere as droplets. Some scientists believe that spray
from the oceans is the biggest source of atmospheric PFAS.
Wellington Laboratories has been committed to providing high quality reference standards and exceptional customer service since its inception in 1980.
The primary source of Standards for EPA Methods 23, 513, 1613, 1668, 8280, 8290, European Method EN-1948 and World Health/EPA Standards, C13 and Native Dioxins, Furans, PCBs and Brominated Diphenyl Ethers, Brominated Dioxins and Furans, Methylated PCDDs and PCDFs, Fluorinated Compounds and more.
Greyhound Chromatography provides a wide range of PFAS related products for testing and analysis.
Wellington Laboratories has been committed to providing high quality reference standards and exceptional customer service since its inception in 1980.
The primary source of Standards for EPA Methods 23, 513, 1613, 1668, 8280, 8290, European Method EN-1948 and World Health/EPA Standards, C13 and Native Dioxins, Furans, PCBs and Brominated Diphenyl Ethers, Brominated Dioxins and Furans, Methylated PCDDs and PCDFs, Fluorinated Compounds and more. Wellington Laboratories' offer a large range of native and mass-labelled per- and poly-fluorinated compounds.
Chem Service, Inc. produces high purity standards for use as reference materials and for other laboratory purposes. More than 95% of the Standards Grade materials have a certified purity of 98.0% or greater and do not require purity corrections when preparing solutions for use with EPA, USTM, UST, and numerous other international methods. You can trust that Chem Service high purity standards are a quality product.
Established in 1962 Chem Service is the largest independent supplier of Analytical Reference Materials and the original source of small quantities of organic chemicals. Chem Service also has over 2,000 Pesticide Standards, including Pesticide Standards for Cannabis in its catalogue. Chem Service offers Custom made Standards manufactured to your specific requirements, all standards are accredited to ISO 17043:2016; ISO/IEC 17025:2005; ISO 9001:2015 Quality Management System.
Over 95% of Chem Services’ neat Standards Grade materials have a purity of 98.0% or greater.
Chem Services’ worldwide customers are found in the chemical, government, food quality, agricultural and life science research communities.
Chem Service's range of Certified Reference Standards are available from Greyhound Chromatography and Allied Chemicals for fast delivery all over the world.
Greyhound Chromatography offers an extensive range of HPLC pumps and UHPLC pumps for analytical, preparative and fluid-metering applications. With a choice of either stainless steel or inert PEEK flow paths, their precision flows and pressure settings ensure reproducible separations time after time.
Other pump configurations are available, simply call our sales office to discuss your specific requirements.
Greyhound Q-Fil Membrane Filters are one of the worlds most popular ranges of Membrane Filters for environmental, industrial, water, food, chemical and biotechnology laboratories.
These high quality membranes are manufactures to the highest specifications to meet the varying requirements of the scientific community.
The Merlin Microseal from greyhound Chromatography is a microvalve alternative to the conventional silicone rubber septa used in Gas Chromatography (GC). Its unique design gives it high pressure capability and resisance to wear which results in long life and excellent chromatographic performance. The microseal is available for all major GC manufacturer's instruments.
Q-range Crimpers and Decappers are the latest development in ergonomic design of manual and electronic devices and transform the standards of vial crimping and decapping. Save time and eliminate repetitive strain when crimping multiple vials. For high volume users, the High Power Crimping Tool will store multiple programmes for different caps and seals and accommodates various sizes of interchangeable jaw sets to increase productivity and ease of use.
For Over 35 years Wellington Laboratories Inc. has been internationally recognised as a trusted source of high quality reference standard solutions for use in environmental/analytical testing and toxicological research. Wellington Laboratories offers an extensive inventory of individual certified reference standards and solution mixtures of native and mass-labelled halogenated organic compounds including polychlorinated dibenzo-p-dioxins, polychlorinated dibenzofurans, polychlorinated biphenyls, halogenated flame retardants and perfluorinated compounds. Wellington Laboratories also offer a variety of calibration sets and support solutions designed to be used for common regulatory methods or modified in-house methods.
Wellington’s Reference Standards are used mainly in Environmental/analytical testing and toxicological research. Wellington offers an extensive inventory of individual certified reference standards and solution mixtures of native and mass-labelled halogenated organic compounds including polychlorinated dibenzo-p-dioxins, polychlorinated dibenzofurans, polychlorinated biphenyls, halogenated flame retardants and perfluorinated compounds. Wellington also offer a variety of calibration sets and support solutions designed to be used for common regulatory methods of modified in-house methods.
Greyhound Chromatography offers an extensive range of HPLC and UHPLC pumps for analytical, preparative and fluid-metering applications. Greyhound also supplies a comprehensive range of replacement parts and accessories. With a choice of either stainless steel or inert PEEK flow paths, their precision flows and pressure settings ensure reproducible separations time after time.
The extensive range of Q-Range autosampler and storage vials and caps, caters for almost every conceivable storage requirement from microlitre to millilitre volumes, in clear or amber glass and plastic materials. Complete with screw, crimp and snap top closures and standard or speciality septa and liners. Our products are designed to suit all the major Instrument manufacturers' equipment, including Agilent, Hitatchi, PerkinElmer, Shimadzu, Thermo Scientific, Varian, Waters etc..
Adam Equipment started in 1972 with the goal to provide quality weighing equipment and services at affordable prices, offering superior value to its customers. Adam scales and balances are sold throughout the world, supported by a diversified network of distributors. Adam Equipment and OEM branded products are used by various customers daily. You will see Adam products in the scientific, medical, educational, industrial, manufacturing and retail sectors.
MACHEREY-NAGEL is a globally operating company with stable growth. In the recent years, the annual turnover exceeded 100 million Euros.
Our comprehensive portfolio includes products for Filtration, Rapid Tests, Water Analysis, Chromatography, and Bioanalysis. We are proud to carry more than 20,000 products designed and manufactured to fit your individual needs.
With more than 470 highly qualified and experienced employees MACHEREY-NAGEL provides the best and most convenient service to our customers. 10 % of our staff have advanced degrees in the fields of Chemistry, Biology, Physics and Engineering, working in our research department on solutions to make your daily laboratory work easier.
Established in 1962 Chem Service is the largest independent supplier of Analytical Reference Materials and the original source of small quantities of organic chemicals. Chem Service also has over 2,000 Pesticide Standards, including Pesticide Standards for Cannabis in its catalogue. Chem Service offers Custom made Standards manufactured to your specific requirements, all standards are accredited to ISO 17043:2016; ISO/IEC 17025:2005; ISO 9001:2015 Quality Management System.
Over 95% of Chem Services’ neat Standards Grade materials have a purity of 98.0% or greater.
Chem Services’ worldwide customers are found in the chemical, government, food quality, agricultural and life science research communities.
More from Greyhound Chromatography and Allied Chemicals (20)
Slide 1: Title Slide
Extrachromosomal Inheritance
Slide 2: Introduction to Extrachromosomal Inheritance
Definition: Extrachromosomal inheritance refers to the transmission of genetic material that is not found within the nucleus.
Key Components: Involves genes located in mitochondria, chloroplasts, and plasmids.
Slide 3: Mitochondrial Inheritance
Mitochondria: Organelles responsible for energy production.
Mitochondrial DNA (mtDNA): Circular DNA molecule found in mitochondria.
Inheritance Pattern: Maternally inherited, meaning it is passed from mothers to all their offspring.
Diseases: Examples include Leber’s hereditary optic neuropathy (LHON) and mitochondrial myopathy.
Slide 4: Chloroplast Inheritance
Chloroplasts: Organelles responsible for photosynthesis in plants.
Chloroplast DNA (cpDNA): Circular DNA molecule found in chloroplasts.
Inheritance Pattern: Often maternally inherited in most plants, but can vary in some species.
Examples: Variegation in plants, where leaf color patterns are determined by chloroplast DNA.
Slide 5: Plasmid Inheritance
Plasmids: Small, circular DNA molecules found in bacteria and some eukaryotes.
Features: Can carry antibiotic resistance genes and can be transferred between cells through processes like conjugation.
Significance: Important in biotechnology for gene cloning and genetic engineering.
Slide 6: Mechanisms of Extrachromosomal Inheritance
Non-Mendelian Patterns: Do not follow Mendel’s laws of inheritance.
Cytoplasmic Segregation: During cell division, organelles like mitochondria and chloroplasts are randomly distributed to daughter cells.
Heteroplasmy: Presence of more than one type of organellar genome within a cell, leading to variation in expression.
Slide 7: Examples of Extrachromosomal Inheritance
Four O’clock Plant (Mirabilis jalapa): Shows variegated leaves due to different cpDNA in leaf cells.
Petite Mutants in Yeast: Result from mutations in mitochondrial DNA affecting respiration.
Slide 8: Importance of Extrachromosomal Inheritance
Evolution: Provides insight into the evolution of eukaryotic cells.
Medicine: Understanding mitochondrial inheritance helps in diagnosing and treating mitochondrial diseases.
Agriculture: Chloroplast inheritance can be used in plant breeding and genetic modification.
Slide 9: Recent Research and Advances
Gene Editing: Techniques like CRISPR-Cas9 are being used to edit mitochondrial and chloroplast DNA.
Therapies: Development of mitochondrial replacement therapy (MRT) for preventing mitochondrial diseases.
Slide 10: Conclusion
Summary: Extrachromosomal inheritance involves the transmission of genetic material outside the nucleus and plays a crucial role in genetics, medicine, and biotechnology.
Future Directions: Continued research and technological advancements hold promise for new treatments and applications.
Slide 11: Questions and Discussion
Invite Audience: Open the floor for any questions or further discussion on the topic.
Seminar of U.V. Spectroscopy by SAMIR PANDASAMIR PANDA
Spectroscopy is a branch of science dealing the study of interaction of electromagnetic radiation with matter.
Ultraviolet-visible spectroscopy refers to absorption spectroscopy or reflect spectroscopy in the UV-VIS spectral region.
Ultraviolet-visible spectroscopy is an analytical method that can measure the amount of light received by the analyte.
Cancer cell metabolism: special Reference to Lactate PathwayAADYARAJPANDEY1
Normal Cell Metabolism:
Cellular respiration describes the series of steps that cells use to break down sugar and other chemicals to get the energy we need to function.
Energy is stored in the bonds of glucose and when glucose is broken down, much of that energy is released.
Cell utilize energy in the form of ATP.
The first step of respiration is called glycolysis. In a series of steps, glycolysis breaks glucose into two smaller molecules - a chemical called pyruvate. A small amount of ATP is formed during this process.
Most healthy cells continue the breakdown in a second process, called the Kreb's cycle. The Kreb's cycle allows cells to “burn” the pyruvates made in glycolysis to get more ATP.
The last step in the breakdown of glucose is called oxidative phosphorylation (Ox-Phos).
It takes place in specialized cell structures called mitochondria. This process produces a large amount of ATP. Importantly, cells need oxygen to complete oxidative phosphorylation.
If a cell completes only glycolysis, only 2 molecules of ATP are made per glucose. However, if the cell completes the entire respiration process (glycolysis - Kreb's - oxidative phosphorylation), about 36 molecules of ATP are created, giving it much more energy to use.
IN CANCER CELL:
Unlike healthy cells that "burn" the entire molecule of sugar to capture a large amount of energy as ATP, cancer cells are wasteful.
Cancer cells only partially break down sugar molecules. They overuse the first step of respiration, glycolysis. They frequently do not complete the second step, oxidative phosphorylation.
This results in only 2 molecules of ATP per each glucose molecule instead of the 36 or so ATPs healthy cells gain. As a result, cancer cells need to use a lot more sugar molecules to get enough energy to survive.
Unlike healthy cells that "burn" the entire molecule of sugar to capture a large amount of energy as ATP, cancer cells are wasteful.
Cancer cells only partially break down sugar molecules. They overuse the first step of respiration, glycolysis. They frequently do not complete the second step, oxidative phosphorylation.
This results in only 2 molecules of ATP per each glucose molecule instead of the 36 or so ATPs healthy cells gain. As a result, cancer cells need to use a lot more sugar molecules to get enough energy to survive.
introduction to WARBERG PHENOMENA:
WARBURG EFFECT Usually, cancer cells are highly glycolytic (glucose addiction) and take up more glucose than do normal cells from outside.
Otto Heinrich Warburg (; 8 October 1883 – 1 August 1970) In 1931 was awarded the Nobel Prize in Physiology for his "discovery of the nature and mode of action of the respiratory enzyme.
WARNBURG EFFECT : cancer cells under aerobic (well-oxygenated) conditions to metabolize glucose to lactate (aerobic glycolysis) is known as the Warburg effect. Warburg made the observation that tumor slices consume glucose and secrete lactate at a higher rate than normal tissues.
This pdf is about the Schizophrenia.
For more details visit on YouTube; @SELF-EXPLANATORY;
https://www.youtube.com/channel/UCAiarMZDNhe1A3Rnpr_WkzA/videos
Thanks...!
Multi-source connectivity as the driver of solar wind variability in the heli...Sérgio Sacani
The ambient solar wind that flls the heliosphere originates from multiple
sources in the solar corona and is highly structured. It is often described
as high-speed, relatively homogeneous, plasma streams from coronal
holes and slow-speed, highly variable, streams whose source regions are
under debate. A key goal of ESA/NASA’s Solar Orbiter mission is to identify
solar wind sources and understand what drives the complexity seen in the
heliosphere. By combining magnetic feld modelling and spectroscopic
techniques with high-resolution observations and measurements, we show
that the solar wind variability detected in situ by Solar Orbiter in March
2022 is driven by spatio-temporal changes in the magnetic connectivity to
multiple sources in the solar atmosphere. The magnetic feld footpoints
connected to the spacecraft moved from the boundaries of a coronal hole
to one active region (12961) and then across to another region (12957). This
is refected in the in situ measurements, which show the transition from fast
to highly Alfvénic then to slow solar wind that is disrupted by the arrival of
a coronal mass ejection. Our results describe solar wind variability at 0.5 au
but are applicable to near-Earth observatories.
Nutraceutical market, scope and growth: Herbal drug technologyLokesh Patil
As consumer awareness of health and wellness rises, the nutraceutical market—which includes goods like functional meals, drinks, and dietary supplements that provide health advantages beyond basic nutrition—is growing significantly. As healthcare expenses rise, the population ages, and people want natural and preventative health solutions more and more, this industry is increasing quickly. Further driving market expansion are product formulation innovations and the use of cutting-edge technology for customized nutrition. With its worldwide reach, the nutraceutical industry is expected to keep growing and provide significant chances for research and investment in a number of categories, including vitamins, minerals, probiotics, and herbal supplements.
The increased availability of biomedical data, particularly in the public domain, offers the opportunity to better understand human health and to develop effective therapeutics for a wide range of unmet medical needs. However, data scientists remain stymied by the fact that data remain hard to find and to productively reuse because data and their metadata i) are wholly inaccessible, ii) are in non-standard or incompatible representations, iii) do not conform to community standards, and iv) have unclear or highly restricted terms and conditions that preclude legitimate reuse. These limitations require a rethink on data can be made machine and AI-ready - the key motivation behind the FAIR Guiding Principles. Concurrently, while recent efforts have explored the use of deep learning to fuse disparate data into predictive models for a wide range of biomedical applications, these models often fail even when the correct answer is already known, and fail to explain individual predictions in terms that data scientists can appreciate. These limitations suggest that new methods to produce practical artificial intelligence are still needed.
In this talk, I will discuss our work in (1) building an integrative knowledge infrastructure to prepare FAIR and "AI-ready" data and services along with (2) neurosymbolic AI methods to improve the quality of predictions and to generate plausible explanations. Attention is given to standards, platforms, and methods to wrangle knowledge into simple, but effective semantic and latent representations, and to make these available into standards-compliant and discoverable interfaces that can be used in model building, validation, and explanation. Our work, and those of others in the field, creates a baseline for building trustworthy and easy to deploy AI models in biomedicine.
Bio
Dr. Michel Dumontier is the Distinguished Professor of Data Science at Maastricht University, founder and executive director of the Institute of Data Science, and co-founder of the FAIR (Findable, Accessible, Interoperable and Reusable) data principles. His research explores socio-technological approaches for responsible discovery science, which includes collaborative multi-modal knowledge graphs, privacy-preserving distributed data mining, and AI methods for drug discovery and personalized medicine. His work is supported through the Dutch National Research Agenda, the Netherlands Organisation for Scientific Research, Horizon Europe, the European Open Science Cloud, the US National Institutes of Health, and a Marie-Curie Innovative Training Network. He is the editor-in-chief for the journal Data Science and is internationally recognized for his contributions in bioinformatics, biomedical informatics, and semantic technologies including ontologies and linked data.
Richard's aventures in two entangled wonderlandsRichard Gill
Since the loophole-free Bell experiments of 2020 and the Nobel prizes in physics of 2022, critics of Bell's work have retreated to the fortress of super-determinism. Now, super-determinism is a derogatory word - it just means "determinism". Palmer, Hance and Hossenfelder argue that quantum mechanics and determinism are not incompatible, using a sophisticated mathematical construction based on a subtle thinning of allowed states and measurements in quantum mechanics, such that what is left appears to make Bell's argument fail, without altering the empirical predictions of quantum mechanics. I think however that it is a smoke screen, and the slogan "lost in math" comes to my mind. I will discuss some other recent disproofs of Bell's theorem using the language of causality based on causal graphs. Causal thinking is also central to law and justice. I will mention surprising connections to my work on serial killer nurse cases, in particular the Dutch case of Lucia de Berk and the current UK case of Lucy Letby.
PFAS TESTING SOLUTIONS FROM GREYHOUND CHROMATOGRAPHY
1. YOUR GLOBAL SCIENCE PARTNER
6 Kelvin Park Birkenhead Merseyside CH41 1LT United Kingdom
Tel: +44 (0) 151 649 4000 ● E: info@greyhoundchrom.com ● www.greyhoundchrom.com
PFAS TESTING SOLUTIONS
All you need for PFAS Analysis
in one place
SPE Columns
QuEChERS
HPLC Columns
Vials and Caps
Chemicals
Standards
3. MACHEREY NAGEL PFAS PRODUCTS
CHROMABOND® PFAS is a polymer-based combination phase which contains a weak anion exchange
functionality. The combination of different SPE phases makes it possible to use various interactions (dipole-dipole,
ionic, hydrophobic, H-bond).
SPE product solutions – CHROMABOND® HR-X and HR-XAW
According to DIN 38407-42, EPA 537.1 and 533 guidelines, MACHEREY-NAGEL also offers further SPE product
solutions for the enrichment of PFAS:
• n CHROMABOND® HR-X: hydrophobic PS / DVB copolymer
• n CHROMABOND® HR-XAW: weak mixed mode anion exchanger (WAX) PS / DVB copolymer
These allow outstanding recovery rates and high reproducibility
SPE column, CHROMABOND® PFAS
PFAS in food using QuEChERS extraction and clean-up method
QuEChERS ("Quick, Easy, Cheap, Effective, Rugged and Safe") sample preparation products from MACHEREY-NAGEL
ensure a time efficient and simple extraction of PFAS from food and a subsequent solid phase extraction for further
sample clean-up
according to procedure C-010.01 developed by the US Food and Drug Administration (FDA) for the measurement of
16 PFAS in food.
There are CHROMABOND® QuEChERS mixes available that are especially suitable for sample preparation of PFAS in:
Dairy products, Bread, Lettuce and Fish
dSPE Columns, CHROMABOND® QuEChERS Mix XII, 15 mL centrifuge tubes, CHROMABOND® QuEChERS Mix XX, 2 mL centrifuge tubes
Method
Product type
ISO 21675:2019 &
DIN 38407-42
EPA 537.1 EPA 533 EPA 8327 FDA C-010.01
SPE Columns CHROMABOND® HR-
XAW
Part No. 730747
CHROMABOND®
HR-X
Part No.
730931P45
CHROMABOND® HR-
XAW
Part No. 730748P45
CHROMABOND®
PFAS
Part No. 730283
dSPE Centrifuge
Tubes
CHROMABOND® PFAS
Part No. 730283
CHROMABOND®
HR-X
Part No. 730939
CHROMABOND® HR-
XAW
Part No. 730745
Direct
Injection
CHROMABOND®
QuEChERS Mix XII
Part No. 730648
CHROMABOND®
PFAS
Part No. 730283
CHROMABOND®
QuEChERS Mix L
Part No. 7300008
CHROMABOND®
QuEChERS Mix XX
Part No.
730670.20
Product selection according to ISO 21675:2019, DIN 38407-42,
EPA 537.1, 533, 8327 and FDA C-010.01 guidelines
Tel: +44(0)151 649 4000 • orders@greyhoundchrom.com • www.greyhoundchrom.com 3
4. Over the years many different PFAS were developed. Now, they are
found in the environment (water, food, soil, animals and humans)
and their problematic health effects come into play. The challenge is
that current analytical methods are limited.
To tackle this challenge, Macherey Nagel developed a special phase
for the enrichment of a broad range of PFAS which provides good reproducibility and high recovery rates.
This is possible due to the different interactions the sorbent combination offers. These interactions are
recommended by DIN 38407-42, EPA 537.1 and 533 guidelines.
The CHROMABOND PFAS is a polymer-based combination phase which contains a weak anion exchange
functionality. The combination of different SPE phases makes it possible to use various interactions (dipole-dipole,
ionic, hydrophobic, H-bond).
CHROMABOND PFAS provides several advantages
• Solution for various PFAS substance classes
• > 28 PFAS can be enriched
• Sorbent retention mechanisms according to DIN 38407-42, EPA 537.1 and 533 guidelines
• High capacity
• High recovery rates
MACHEREY NAGEL PFAS PRODUCTS
Chromabond PFAS SPE COLUMNS
This state-of-the-art spherical polymer has been developed for the
highest demands in solid phase extraction. PS/DVB copolymer with
secondary and tertiary ammonium modification for mixed-mode SPE
with weak anion exchange and reversed-phase properties (WAX).
Exchange capacity > 0.5 meq/g, pKa 6 + 9 and RP capacity 350 mg/g
(caffeine in water).
High-purity material with ideal flow properties and highest reproducibility, with extremely low blind values due to
an optimized production process. Outstanding recovery rates especially for the enrichment of acidic (strong acids
with pKa < 1) analytes.
Chromabond HR-XAW SPE COLUMNS
Chromabond HR-X SPE COLUMNS
A spherical, hydrophobic polystyrene-divinylbenzene resin in SPE
columns. High-purity material with highest reproducibility and lowest
blank values due to an optimized manufacturing process. Excellent
recovery rates especially for the enrichment of pharmaceuticals/active
ingredients due to the spherical structure of the particles, very
homogeneous surface, and optimized pore structure.
4 Tel: +44(0)151 649 4000 • orders@greyhoundchrom.com • www.greyhoundchrom.com
5. The advantages of QuEChERS ("Quick, Easy, Cheap, Effective, Rugged and Safe") products in comparison with
classical clean-up methods include:
• Easy to handle and time-saving procedure as well as no need for glassware (convenient and economical)
• Low consumption of solvents and no need for chlorinated solvents (environmentally friendly)
• Broad range of pesticides can be detected and rugged method with high and safe recovery rates (reliable and
good performance).
These are the demands of modern sample preparation. The QuEChERS (pronounced as “catchers”) method,
introduced by Anastassiades et al. in 2003, and their continuous development created an expansion of ready-to-use
mixtures. QuEChERS became the method of choice in sample preparation for the analysis of pesticides and drugs in
fruit, vegetables and other matrices. CHROMABOND QuEChERS Mix L is ideal for PFAS analysis.
MACHEREY NAGEL PFAS PRODUCTS
Chromabond QuEChERS Mix L
Chromabond QuEChERS Mix XII
Tel: +44(0)151 649 4000 • orders@greyhoundchrom.com • www.greyhoundchrom.com 5
Part No. 730648
QuEChERS method Extraction, original
Brand CHROMABOND
Phase Mix XII
Mode Dispersive SPE (dSPE)
Composition 4000mg MgSO4 1000mg NaCl
Recommended application(s) Food samples, Forensic and drug samples, Pesticides, QuEChERS, Sample
preparation
Column type Centrifuge tube, 15mL with screw cap
Column volume 15mL
Hardware Polypropylene (PP)
MgSO4 4000mg MgSO4
NaCl 1000mg NaCl
Storage temperature RT
Scope of delivery 1 x 50 centrifuge tubes (15mL) filled with QuEChERS Mix, Certificate of analysis
Hazardous material No
Part No. 7300008
QuEChERS method Clean-up
Brand CHROMABOND
Mode Dispersive SPE (dSPE)
Composition 900mg MgSO4 30 mg Diamino (PSA), 150mg Carbon
Matrix properties Higher content of chlorophyll and carotinoids (pigments)
Recommended application(s) PFAS in food (e.g. milk, curd cheese, quark, bread, brussel sprouts, spinach, eggs),
QuEChERS, Sample preparation
Column type Centrifuge tube, 15mL with screw cap
Column volume 15mL
Hardware Polypropylene (PP)
MgSO4 900mg MgSO4
Diamino (PSA) 300mg Diamino (PSA)
Carbon 150mg Carbon
Storage temperature RT
Scope of delivery 1 x 50 centrifuge tubes (15 mL) filled with QuEChERS Mix, Certificate of analysis
Hazardous material No
6. MACHEREY NAGEL PFAS PRODUCTS
Chromabond QuEChERS Mix XX
Ordering Information - SPE columns and dSPE centrifuge tubes
Chromabond SPE Vacuum Manifolds
The Chromabond SPE system which allows for precise flow control
through each SPE tube via rotating, independent, Luer valves
(stopcocks) with each port on the manifold cover. Chromabond SPE
vacuum manifolds allow you to process up to 12 (12-port version) or
24 (24-port version) PFAS samples simultaneously.
6 Tel: +44(0)151 649 4000 • orders@greyhoundchrom.com • www.greyhoundchrom.com
Part No. 730670.2
QuEChERS method Clean-up, AOAC 2007.01
Brand CHROMABOND
Phase Mix XX
Mode Dispersive SPE (dSPE)
Composition 150mg MgSO4 50mg Diamino (PSA)
Matrix properties Low fat content
Recommended application(s) Apple, Apricot, Asparagus, Broccoli, Food samples, Forensic and
drug samples, Pear, Pesticides, Pineapple, QuEChERS, Sample
preparation, Samples with low fat content, Strawberry
Column type Centrifuge tube, 2mL
Column volume 2mL
Hardware Polypropylene (PP)
MgSO4 150mg MgSO4
Diamino (PSA) 50mg Diamino (PSA)
Storage temperature RT
Scope of delivery 10 x 5 centrifuge tubes (2mL) filled with QuEChERS Mix, Certificate
of analysis
Hazardous material No
Part No. Description Unit
730283 CHROMABOND® PFAS, 85µm, 6 mL / 300mg 30
730745 CHROMABOND® HR-XAW, 85µm, 6 mL / 500mg 30
730747 CHROMABOND® HR-XAW, 85µm, 3 mL / 60mg 30
730931P45 CHROMABOND® HR-X, 45µm, 3 mL / 200mg 30
730939 CHROMABOND® HR-X, 85µm, 6 mL / 500mg 30
7300008
CHROMABOND® QuEChERS Mix L Diamino / Carbon clean-up mix consisting of: 900mg
MgSO4, 300mg CHROMABOND® Diamino, 150mg CHROMABOND® Carbon, individually
weighed and filled into 1 mL centrifuge tubes (PP) with screw cap (PE)
50
730648
CHROMABOND® QuEChERS Mix XII, extraction mix consisting of: 4000mg MgSO4, 1000mg
NaCl, individually weighed and filled into 15mL centrifuge tubes (PP) with screw cap (PE)
50
730670.2
CHROMABOND® QuEChERS Mix XX Diamino clean-up mix (acc. to AOAC) consisting of:
150mg MgSO4, 50mg CHROMABOND® Diamino individually weighed and filled into 2mL
centrifuge tubes (PP) with snap cap (PP)
50
Part No. Description Unit
730150N Vacuum Chamber Standard, 12-port model Each
730151N Vacuum Chamber Standard, 24-port model Each
7. MACHEREY NAGEL PFAS PRODUCTS
NUCLEODUR PFAS, EC HPLC Column (analytical) 3µm, 100 x 2mm
Hydrophobic reversed phase with distinct polar selectivity for special PFAS analysis. Suitability for PFAS analysis is
assured through qualified batch analysis. This HPLC phase is made of high purity NUCLEODUR HPLC silica gel and is
extensively end capped. Due to a low bleeding characteristics these columns are suitable for high sensitivity
LC/MS analysis.
Part No. 760666.20
Method HPLC, analytical
Brand NUCLEODUR
Base material NUCLEODUR - high purity silica
Phase NUCLEODUR PFAS
USP listing Not available or proprietary
Surface chemistry Proprietary
Mode Reversed phase (RP)
Type EC HPLC column (analytical)
Hardware Stainless steel
Column length 100 mm
Column inner diameter 2 mm
Particle type Fully porous particle (FPP)
Particle shape Spherical
Particle size 3µm
Eluent in HPLC column Acetonitrile – water
Recommended application(s) PFAS
End capped Yes
Carbon content Not available or proprietary
pH stability 1.0 - 9.0
Pore size 110 Å
Specific surface according to BET 340 m²/g
Temperature stability (max) 60 °C
Tmax (phosphate buffer) 40 °C
Pressure stability (max) 600 bar
Column volume 0.3mL
Storage temperature RT
Scope of delivery
1 x analytical HPLC column, instruction leaflet, certificate of analysis +
batch document
Hazardous material No
Tel: +44(0)151 649 4000 • orders@greyhoundchrom.com • www.greyhoundchrom.com 7
8. MACHEREY NAGEL PFAS PRODUCTS
NUCLEODUR PFAS, EC HPLC Column (analytical) 3µm, 50 x 2mm
Hydrophobic reversed phase with distinct polar selectivity for special PFAS analysis. Suitability for PFAS analysis is
assured through qualified batch analysis. This HPLC phase is made of high purity NUCLEODUR HPLC silica gel and is
extensively end capped. Due to a low bleeding characteristics these columns are suitable for high sensitivity
LC/MS analysis.
Part No. 760663.20
Method HPLC, analytical
Brand NUCLEODUR
Base material NUCLEODUR - high purity silica
Phase NUCLEODUR PFAS
USP listing Not available or proprietary
Surface chemistry Proprietary
Mode Reversed phase (RP)
Type EC HPLC column (analytical)
Hardware Stainless steel
Column length 50 mm
Column inner diameter 2 mm
Particle type Fully porous particle (FPP)
Particle shape Spherical
Particle size 3 µm
Eluent in HPLC column Acetonitrile – water
Recommended application(s) PFAS
End capped Yes
Carbon content Not available or proprietary
pH stability 1.0 - 9.0
Pore size 110 Å
Specific surface according to BET 340 m²/g
Temperature stability (max) 60 °C
Tmax (phosphate buffer) 40 °C
Pressure stability (max) 600 bar
Column volume 0.15mL
Storage temperature RT
Scope of delivery
1 x analytical HPLC column, instruction leaflet, certificate of analysis +
batch document
Hazardous material No
8 Tel: +44(0)151 649 4000 • orders@greyhoundchrom.com • www.greyhoundchrom.com
9. MACHEREY NAGEL PFAS PRODUCTS
NUCLEODUR PFAS Delay, EC HPLC Column (analytical) 5µm, 50 x 2mm
NUCLEODUR PFAS Delay columns trap and therefor delay system-related PFAS contaminants, ensuring trace level
analysis of PFAS in your samples. This HPLC phase is made of high purity NUCLEODUR HPLC silica gel and is
extensively end capped. Due to a low bleeding characteristics these columns are suitable for high sensitivity
LC/MS analysis.
Part No. 760673.20
Method HPLC, analytical
Brand NUCLEODUR
Base material NUCLEODUR - high purity silica
Phase NUCLEODUR PFAS Delay
USP listing Not available or proprietary
Surface chemistry Proprietary
Mode Reversed phase (RP)
Type EC HPLC column (analytical)
Hardware Stainless steel
Column length 50 mm
Column inner diameter 2 mm
Particle type Fully porous particle (FPP)
Particle shape Spherical
Particle size 5 µm
Eluent in HPLC column Acetonitrile – water
Recommended application(s) PFAS
End capped Yes
Carbon content Not available or proprietary
pH stability 1.0 - 9.0
Pore size 110 Å
Specific surface according to BET 340 m²/g
Temperature stability (max) 60 °C
Tmax (phosphate buffer) 40 °C
Pressure stability (max) 600 bar
Column volume 0.15 mL
Storage temperature RT
Scope of delivery 1 x analytical HPLC column, instruction leaflet, certificate of analysis
Hazardous material No
Tel: +44(0)151 649 4000 • orders@greyhoundchrom.com • www.greyhoundchrom.com 9
10. SIGMA ALDRICH PFAS PRODUCTS
Sigma Aldrich Sample Preparation Products
Optimized sample clean-up and concentration is vital to achieve accurate and precise results. A range of vacuum manifolds,
solid phase extraction (SPE) cartridges, and large volume samplers are available to support your PFAS sample preparation
needs (Figure 1).
Figure 1. Visiprep™ large volume samplers,
Supelclean™ SPE cartridges, and Visiprep™
vacuum manifolds provide a complete
sample preparation solution for PFAS
analysis.
Supelclean™ SPE Cartridges
Multiple regulatory methods, such as EPA 537 and
533, detail the extraction of PFAS analytes from
drinking water using SPE cartridges followed by
analysis by LC/ TQ. Most commonly, weak anion
exchange (WAX) cartridges, such as Supelclean™ ENVI
-WAX SPE cartridges, are used due to their ability to
extract both short and long-chain PFAS analytes with
good recoveries as seen in EPA 533 and ISO methods.
EPA 537 uses a polystyrene divinylbenzene (PS-DVB)
cartridge, such as a Supelclean™ ENVI™-Chrom P SPE
cartridge, which offers high recoveries for medium
and long-chain PFAS analytes.
Large Volume SPE Reservoirs
Large volume SPE reservoirs are designed to increase
the headspace volume of standard polypropylene SPE
tubes. Because these reservoirs are designed to connect
directly to the mouth of the SPE tube, they are ideal for
gravity applications where increased headspace volume
is required. The reservoirs are designed for use with 6
mL polypropylene SPE tubes and add an additional
headspace volume of 25mL.
Visiprep™ Vacuum Manifolds
The Visiprep™ system contains a patented valve system
that allows for precise flow control through each SPE
tube via rotating, independent, screw-type valves
situated in each port within the manifold cover.
Visiprep™ vacuum manifolds allow you to process up to
12 (12-port version) or 24 (24-port version) PFAS samples
simultaneously.
Supelclean™ SPE Cartridges
Cat. No Description
57226 Supelclean™ ENVI™ Chrom P SPE Cartridges, 500mg
57239-U Supelclean™ ENVI™ Chrom P SPE Cartridges, 500mg for use with Gerstel®
MPS
54057-U Supelclean™ ENVI™ WAX™ SPE Cartridges, 500mg
54056-U Supelclean™ ENVI™ WAX™ SPE Cartridges, 200mg
Large Volume SPE Reservoir
Cat. No Description
54258-U Large Volume SPE Reservoir, polypropylene body, for use with 6 mL
polypropylene SPE tubes, volume 25mL, pk of 30
Visiprep™ Vacuum Manifolds
Cat. No Description
57030-U Standard, 12-port model
57250-U Standard, 24-port model
10 Tel: +44(0)151 649 4000 • orders@greyhoundchrom.com • www.greyhoundchrom.com
11. SIGMA ALDRICH PFAS PRODUCTS
Sigma Aldrich HPLC Columns
The Sigma Aldrich HPLC column of choice for PFAS analysis by LC-MS/(MS) is a C18 column based on fully
monolithic Chromolith® columns for every matrix-rich samples, or on superficially porous silica particles (SPP) such
as Ascentis® Express.
In contrast to ordinary FPP C18 columns Ascentis®
Express PFAS columns are tested using a PFAS
compound mixture. This ensures the full suitability of
the column for PFAS analysis.
The contamination of PFAS compounds from the
HPLC system and materials used in analytics is a
concern. Therefore, it is recommended to use a delay
column, which is placed before injection in the
system set-up.
The highly retentive endcapped silane of the
Ascentis® Express PFAS Delay column provides high
retention of PFAS compounds across various mobile
phase conditions and is used to delay background
instrument PFAS contamination from interference
with analyzed samples. For this reason, the Ascentis®
Express PFAS Delay column is placed upstream of the
sample injector and after the mixer.
The new Ascentis® Express PFAS HPLC column is
designed for the separation of novel and legacy short
chain and long chain PFAS compounds containing
branched and linear isomers, whilst adhering to EPA
methodology requirements. The Ascentis® Express
PFAS HPLC column, with its Fused-Core® technology
and a particle size of 2.7 µm, delivers fast and high-
resolution separations with excellent selectivity, peak
shape, and necessary retention to perform in EPA
methods 537.1, 533 and 8327.
Furthermore, a specific PFAS delay column prevents
background PFAS contamination from interfering
with the sample results in quantitative LC-MS
methods.
Cat. No Description Cat. No Description
Analytical Column Corresponding Delay Column
Ascentis® Express 90 Å PFAS, 2.7 μm HPLC Column Ascentis® Express 90 Å PFAS Delay, 2.7 μm HPLC Column
53557-U L × I.D. 5 cm × 2.1 mm 53572-U L × I.D. 5 cm × 3.0 mm
53559-U L × I.D. 10 cm × 2.1 mm 53572-U L × I.D. 5 cm × 3.0 mm
53560-U L × I.D. 15 cm × 2.1 mm 53572-U L × I.D. 5 cm × 3.0 mm
53562-U L × I.D. 25 cm × 2.1 mm 53572-U L × I.D. 5 cm × 3.0 mm
53563-U L × I.D. 5 cm × 3.0 mm 53573-U L × I.D. 5 cm × 4.6 mm
53564-U L × I.D. 10 cm × 3.0 mm 53573-U L × I.D. 5 cm × 4.6 mm
53565-U L × I.D. 15 cm × 3.0 mm 53573-U L × I.D. 5 cm × 4.6 mm
53570-U L × I.D. 25 cm × 3.0 mm 53573-U L × I.D. 5 cm × 4.6 mm
Tel: +44(0)151 649 4000 • orders@greyhoundchrom.com • www.greyhoundchrom.com 11
12. The problem of PFAS in the environment
Because Perfluoroalkyl and Polyfluoroalkyl substances do not decompose, they can accumulate
over time in the environment and the human body.
There is increasing evidence that exposure to PFAS can adversely affect human health. As a result,
regulatory bodies are legislating that many materials should be tested to ensure that they do not
contain traces of PFAS or that the traces are below permitted legal limits.
PFAS are widely used in materials such as PTFE, which are commonly used in chemical analysis
consumables, therefore, laboratories need new labware products to minimize background
contamination from these chemicals.
PTFE contains trace amounts of PFAS, so it is important not to use PTFE faced liners in autosampler
vials or sample containers. To overcome this problem, Greyhound supplies vial septa
manufactured from a high-purity silicone rubber composition coated with a layer of Polyimide,
which is the perfect solution for trace PFAS analysis. The usable temperature range of these caps is
up to 130°C, and is suitable for up to 10 injections.
The Polyimide is amber-coloured translucent and the high purity white silicone rubber reduces
leaching.
Polypropylene Q-Range™ Wide Neck Screw Top and Snap Cap Vials are the vials
recommended for your PFAS analyses
Manufactured from chemical resistant polypropylene, the material is ideal for “PFAS-free”
sampling, testing, storage and transportation operations. These lightweight vials are an excellent
economical alternative to glass and are designed to work with most autosamplers. The ultra
smooth walls of the Q-Range™ vials ensure less adsorption, resulting in far higher recoveries (97%
compared to some competitor’s vials of only 39%)
Q-Range™ Vial Kits for PFAS Testing
These Q-Range™ Vial Kits for PFAS testing are available in 9mm Wide Neck Screw Top or 11mm
Wide Neck Snap Cap versions and include 100 vials and 100 caps. Packaged in sealed clear plastic
bags which fit in a bench drawer for easy access and to keep the products clean and dust free.
Greyhound Q-Range™ 9mm Screw Top and 11mm Snap Top vials are designed to work in
robotic arm autosamplers and have a crimp style height combined with the convenience of Screw
Thread or Snap Cap configuration.
Silicone/Polyimide Compatibility Chart
GREYHOUND CHROMATOGRPHY Q-Range™ PFAS PRODUCTS
Autosampler Vials for PFAS Analysis
12 Tel: +44(0)151 649 4000 • orders@greyhoundchrom.com • www.greyhoundchrom.com
13. Part No. Description Unit
Screw Thread Vial Kits for PFAS Testing
60-101498 Vial Kit - P/Nos 60-100007 and 60-101035-B
300µL Polypropylene Limited Volume Vials, 9mm Screw Thread, 12x32mm and
9mm Blue Screw Cap, with 1mm thick Polyimide/Silicone Liner for PFAS Testing
100
60-101499 Vial Kit - P/Nos 60-100053 and 60-101035-B
500µL Polypropylene Limited Volume Vial, 9mm Screw Thread, 12x32mm and
9mm Blue Screw Cap, with 1mm thick Polyimide/Silicone Liner for PFAS Testing
100
60-101500 Vial Kit - P/Nos 60-100068 and 60-101035-B
750µL Polypropylene Limited Volume Vial, 9mm Screw Thread, 12x32mm and
9mm Blue Screw Cap, with 1mm thick Polyimide/Silicone Liner for PFAS Testing
100
60-101501 Vial Kit - P/Nos 60-100087 and 60-101035-B
1.5mL Polypropylene Vial, 9mm Thread, 12x32mm and
9mm Blue Screw Cap, with 1mm thick Polyimide/Silicone Liner for PFAS Testing
100
Part No. Description Unit
9mm Screw Thread Vials
60-100007 100µL to 300µL Polypropylene Limited Volume Vial, 12x32mm, 9mm Thread 100
60-100007-A 100µL to 300µL Amber Polypropylene Limited Volume Vial, 12x32mm, 9mm Thread 100
60-100007-BK 100µL to 300µL Black Polypropylene Limited Volume Vial, 12x32mm, 9mm Thread 100
60-100053 500µL Polypropylene Limited Volume Vial, 12x32mm, 9mm Thread 100
60-100053-A 500µL Amber Polypropylene Limited Volume Vial, 12x32mm, 9mm Thread 100
60-100053-BK 500µL Black Polypropylene Limited Volume Vial, 12x32mm, 9mm Thread 100
60-100053-PK 500µL Pink Polypropylene Limited Volume Vial, 12x32mm, 9mm Thread 100
60-100068 750µL Polypropylene Limited Volume Vial, 12x32mm, 9mm Thread 100
60-100087 1.5mL Polypropylene Vial, 12x32mm, 9mm Thread 100
60-100087-BK 1.5mL Black Polypropylene Vial, 12x32mm, 9mm Thread 100
9mm Screw Thread Caps
60-101035-B 9mm Screw Cap, Blue with 1mm Thick Polyimide/Silicone Liner for PFAS Testing 100
Polypropylene 9mm Screw Top
Vials and Closures
& Vial Kits
GREYHOUND CHROMATOGRPHY Q-Range™ PFAS PRODUCTS
Autosampler Vials for PFAS Analysis
Tel: +44(0)151 649 4000 • orders@greyhoundchrom.com • www.greyhoundchrom.com 13
14. Part No. Description Unit
Snap Cap Vial Kits for PFAS Testing
60-101450 Vial Kit - P/Nos 60-1000014 and 60-100772-B
100µL to 300µL Polypropylene Limited Volume Vials, 12x32mm and
11mm Blue Snap Cap, with 1mm thick Polyimide/Silicone Liner for PFAS Testing
100
60-101451 Vial Kit - P/Nos 60-100016 and 60-100772-B
500µL Polypropylene Limited Volume Vial, 12x32mm and
11mm Blue Snap Cap, with 1mm thick Polyimide/Silicone Liner for PFAS Testing
100
60-101452 Vial Kit - P/Nos 60-100075 and 60-100772-B
750µL Polypropylene Limited Volume Vial, 12x32mm and
11mm Blue Snap Cap, with 1mm thick Polyimide/Silicone Liner for PFAS Testing
100
60-101453 Vial Kit - P/Nos 60-100076 and 60-100772-B
1.5mL Polypropylene Vial, 12x32mm and
11mm Blue Snap Cap, with 1mm thick Polyimide/Silicone Liner for PFAS Testing
100
Part No. Description Unit
11mm Snap Cap Vials
60-100014 100µL to 300µL Polypropylene Limited Volume Vial, 12x32mm, 11mm Crimp/Snap Ring 100
60-100014-A 100µL to 300µL Amber Polypropylene Limited Volume Vial, 12x32mm, 11mm Crimp/Snap Ring 100
60-100014-BK 100µL to 300µL Black Polypropylene Limited Volume Vial, 12x32mm, 11mm Crimp/Snap Ring 100
60-100016 500µL Polypropylene Limited Volume Vial, 12x32mm, 11mm Crimp/Snap Ring 100
60-100016-A 500µL Amber Polypropylene Limited Volume Vial, 12x32mm, 11mm Crimp/Snap Ring 100
60-100016-PK 500µL Pink Polypropylene Limited Volume Vial, 12x32mm, 11mm Crimp/Snap Ring 100
60-100075 750µL Polypropylene Limited Volume Vial, 12x32mm, 11mm Crimp/Snap Ring 100
60-100075-A 750µL Amber Polypropylene Limited Volume Vial, 12x32mm, 11mm Crimp/Snap Ring 100
60-100075-BK 750µL Black Polypropylene Limited Volume Vial, 12x32mm, 11mm Crimp/Snap Ring 100
60-100076 1.5mL Polypropylene Snap Seal Vial, 12x32mm, 11mm Crimp/Snap Ring 100
60-100076-A 1.5mL Amber Polypropylene Snap Seal Vial, 12x32mm, 11mm Crimp/Snap Ring 100
60-100076-BK 1.5mL Black Polypropylene Snap Seal Vial, 12x32mm, 11mm Crimp/Snap Ring 100
11mm Snap Caps
60-100772-B 11mm Snap Cap, Blue with 1mm Thick Polyimide/Silicone Liner for PFAS Testing 100
GREYHOUND CHROMATOGRPHY Q-Range™ PFAS PRODUCTS
Autosampler Vials for PFAS Analysis
Polypropylene 11mm Snap Cap
Vials and Closures
14 Tel: +44(0)151 649 4000 • orders@greyhoundchrom.com • www.greyhoundchrom.com
15. SOLVENTS & CHEMICALS
Solvents for PFAS Analysis
Analysis of PFAS requires solvent of high purity and low
PFAS residues.
From our experience of various brands of solvents, we
have listed below a range of high purity solvents and
solvents which are verified for PFAS Analysis
Cat. No Description Unit Brand
900688 Methanol (LC-MS grade, verified) 1Ltr Sigma-Aldrich
1.03726 Methanol (LC-MS grade, verified) 1Ltr Supelco
BIO-13687801 Methanol Absolute (LC-MS grade, 99.95%) 6 x 1Ltr Biosolve
45754 Acetic acid (HPLC grade) 100ml Sigma-Aldrich
5.43808 Acetic acid (HPLC grade) 100ml Supelco
BIO-05400601 Acetic acid (HPLC grade, 99.9%) 6 x 1Ltr Biosolve
AX1308 Ammonium hydroxide (OmniTrace Ultra) N/A Supelco
5.43834 Ammonium acetate, solid (HPLC grade) 100gm Supelco
BIO-01244156 Ammonium acetate, solid (ULC-MS grade) 100gm Biosolve
900667 Acetonitrile (LC-MS grade, verified) 1Ltr Sigma-Aldrich
1.03725 Acetonitrile (LC-MS grade, verified) 1Ltr Supelco
BIO-01207801 Acetonitrile (LC-MS grade) 6 x 1Ltr Biosolve
AX1222 Ammonium acetate, solid (HPLC & ACS grades) N/A Supelco
BIO-01244156 Ammonium acetate, solid (ULC-MS grade, 99.0 - 101.0 w/w) 100gm Biosolve
650447 Isopropyl alcohol (HPLC+ grade) 1Ltr Sigma-Aldrich
BIO-16264101-1 2-Propanol (ULC-MS grade, 99.95%) 1Ltr Biosolve
900682 Water (LC-MS grade, verified) 1Ltr Sigma-Aldrich
1.03728 Water (LC-MS grade, verified) 1Ltr Supelco
BIO-23217823 Water (LC-MS grade, ) 6 x 1Ltr Biosolve
WELLINGTON LABORATORIES PFAS STANDARDS
Wellington Laboratories are the worlds leading source of standards for
environmental analysis. Per- and Polyfluoroalkyl Substances (PFAS) are an
emerging class of environmental contaminants. Their unique properties create a
host of analytical challenges that require the use of native and mass-labelled
standards for the generation of accurate data.
The most notable PFAS include PFOS (perfluorooctanesulfonate) and PFOA
(perfluorooctanoic acid) and Wellington currently offers multiple mass-labelled
standards for these compounds to meet your analytical needs.
Details of the full range of PFAS and other environmental standards from Wellington Laboratories Inc. are
available on our website -
www.greyhoundchrom.com/pfas-reference-standards-greyhound-chromatography
Tel: +44(0)151 649 4000 • orders@greyhoundchrom.com • www.greyhoundchrom.com 15
16. YOUR GLOBAL SCIENCE PARTNER
6 Kelvin Park Birkenhead Merseyside CH41 1LT United Kingdom
Tel: +44 (0) 151 649 4000 ● E: info@greyhoundchrom.com ● www.greyhoundchrom.com
PFAS TESTING SOLUTIONS
All you need for PFAS Analysis
in one place
SPE Columns
QuEChERS
HPLC Columns
Vials and Caps
Chemicals
Standards