This high performance liquid chromatograph (HPLC) is the first-ever instrument designed specifically for quantitative determination of cannabinoid content. Ready for use after one day of installation and testing, it provides a choice of three different HPLC methods and a dedicated user interface for a simplified workflow.
Like cannabis, hemp oil may be analyzed easily and effectively for its cannabinoid content. This application note highlights the use of a High Sensitivity HPLC method to determine 11 important cannabinoids, including CBD, in hemp oil.
This application note demonstrates the analyses of residual solvents as described in USP<467> carried out with an HS-10 static headspace sampler and a Shimadzu Gas Chromatograph.
The growth of, and the confidence in, hemp products will require applicable testing to ensure product quality and safety. Chromatography technology will play a large role in this as the technique is used for potency testing. This study optimizes a quantitative chromatographic determination of 15 cannabinoids using the Shimadzu Hemp Analyzer.
The presentation describes the automated process of the system and present a number of applications from sample matrices such as food, polymers, and pharmaceuticals to show the utility of the system.
Haloacetic acids (HAAs) are known carcinogens that may occur as disinfection byproducts in drinking water. Traditionally these compounds were analyzed using helium (He) carrier gas, the cost of which has increased tremendously over the years. In this application, we explored using alternative hydrogen (H2) carrier gas to determine HAA concentrations according to EPA method 552.3.
A single chromatographic method was developed for the separation and quantitation of ten common seized drugs. The single quadrupole mass spectrometer, LCMS 2020, demonstrated its capability for simultaneous detection and confirmation using in source fragmentation of all analytes. Linear calibration curves were acquired for each analyte.
This presentation reports on the development of a GC FID method to accurately quantify ethanol and IPA concentrations in two hand sanitizer samples. By using nitrogen as the carrier gas, this method is cost-effective and ensures the product compliance with CDC and USP guidelines and regulations.
Analysis of Phenolic Antioxidants in Edible Oil/Shortening Using the PerkinEl...PerkinElmer, Inc.
Phenolic antioxidants are commonly used in food to prevent the oxidation of oils. Oxidized oil and fats cause foul odor and rancidity in food products, which is a major cause for concern to the food industry. Globally, regulations vary, but current maximum allowable levels are as low as 100 μg/g (100 ppm). This application note presents a UHPLC method for the analysis of the ten most common phenolic antioxidants that may be found in such products.
Like cannabis, hemp oil may be analyzed easily and effectively for its cannabinoid content. This application note highlights the use of a High Sensitivity HPLC method to determine 11 important cannabinoids, including CBD, in hemp oil.
This application note demonstrates the analyses of residual solvents as described in USP<467> carried out with an HS-10 static headspace sampler and a Shimadzu Gas Chromatograph.
The growth of, and the confidence in, hemp products will require applicable testing to ensure product quality and safety. Chromatography technology will play a large role in this as the technique is used for potency testing. This study optimizes a quantitative chromatographic determination of 15 cannabinoids using the Shimadzu Hemp Analyzer.
The presentation describes the automated process of the system and present a number of applications from sample matrices such as food, polymers, and pharmaceuticals to show the utility of the system.
Haloacetic acids (HAAs) are known carcinogens that may occur as disinfection byproducts in drinking water. Traditionally these compounds were analyzed using helium (He) carrier gas, the cost of which has increased tremendously over the years. In this application, we explored using alternative hydrogen (H2) carrier gas to determine HAA concentrations according to EPA method 552.3.
A single chromatographic method was developed for the separation and quantitation of ten common seized drugs. The single quadrupole mass spectrometer, LCMS 2020, demonstrated its capability for simultaneous detection and confirmation using in source fragmentation of all analytes. Linear calibration curves were acquired for each analyte.
This presentation reports on the development of a GC FID method to accurately quantify ethanol and IPA concentrations in two hand sanitizer samples. By using nitrogen as the carrier gas, this method is cost-effective and ensures the product compliance with CDC and USP guidelines and regulations.
Analysis of Phenolic Antioxidants in Edible Oil/Shortening Using the PerkinEl...PerkinElmer, Inc.
Phenolic antioxidants are commonly used in food to prevent the oxidation of oils. Oxidized oil and fats cause foul odor and rancidity in food products, which is a major cause for concern to the food industry. Globally, regulations vary, but current maximum allowable levels are as low as 100 μg/g (100 ppm). This application note presents a UHPLC method for the analysis of the ten most common phenolic antioxidants that may be found in such products.
This presentation evaluates ASTM D7979-16 for the “direct” analysis of 30 PFCs and compares data to the solid-phase extraction EPA drinking water Method 537.
Practical Implementation of the New Elemental Impurities Guidelines May 2015SGS
The International Conference on Harmonization (ICH) released its Q3D Guideline for Elemental Impurities in December 2014, initiating reviews and changes in quality testing programs in bio/pharmaceutical companies around the world. In advance of the implementation dates, companies need to assess the risks of potential elemental impurities in their process and materials streams.
In this presentation, experts will review the requirements of elemental impurities guidelines from ICH, the European Pharmacopeia, and United States Pharmacopeia, outline practical recommendations to address implementation challenges, and discuss key considerations for analytical testing programs.
This application note describes the methodology and use of the Shimadzu ICPMS-2030 ICP mass spectrometer for the analysis of trace elements in drinking and fresh waters following the EPA 200.8 method. This method is also used for analysis of wastewater. Here, we demonstrate the stability and sensitivity of the ICPMS-2030 for EPA 200.8 analyses.
Analysis of Capsaicin and Dihydrocapsaicin in Chili Peppers Using the PerkinE...PerkinElmer, Inc.
Capsaicinoids are the compounds that produce the pungency, aroma and flavor of chili peppers. The two most abundant capsaicinoids in chili peppers are capsaicin (8-methyl-N-vanillyl-trans-6-nonenamide) and dihydrocapsaicin. Combined, these two make up close to 90% of the most pungent varieties of capsaicinoids, with capsaisin making up about 71%. The capsaicin content of peppers is one of the parameters that determine their commercial quality. The amount of capsaicin can vary, depending on the light intensity and temperature at which the plant is grown, the age of the fruit, and the position of the fruit in the plant. Besides their widespread uses in foods, capsaicinoids are increasingly being used as the active component in pharmaceuticals and have been used as an analgesic against arthritis pain and inflammation. They have also been reported to be active against neurogenic inflammation (as in pepper sprays) and have shown protective effects against high cholesterol levels and obesity. Considering the increased use of capsaicinoids in both foods and pharmaceuticals, there is an increasing demand for their accurate quantitation as part of monitoring the quality of chili peppers. In this regard, this application focuses on the extraction, HPLC separation and quantitation of capsaisin and dihydrocapsaicin in two store-bought chili pepper powders.
The presence of Per- and Polyfluorinated Alkyl Substances (PFAS) in drinking water is being thoroughly studied due to the persistence of these compounds in the environment and their potential health effects. However, there is limited knowledge about the occurrence of these chemicals in bottled water, despite the increasing concerns about PFAS in the food supply. This poster shows results from a fast and simple direct injection method similar to draft EPA method 8237, using the Shimadzu triple quad LCMS-8050 to analyze seven commercially available samples of bottled water for 24 PFAS.
The automation of sample preparation has become an increasingly important component for reproducible and operator-independent experiments. This work outlines novel strategies that are being utilized for automated online and offline sample preparation to achieve specific goals, such as a host of applications including targeting post-translationally modified proteins, non-tryptic peptides, and intact proteins.
Development and validation of a stability-indicating HPLC method for the simultaneous determination of Losartan potassium, hydrochlorothiazide, and their degradationproducts
Cleaning validation is necessary to establish the quality and safety of pharmaceutical drug products. In cleaning validation protocols, direct sampling is performed with swabs, which are sticks with textiles at one end. The sample on the swab after swabbing the surface of equipment is analyzed with a TOC analyzer and HPLC. Recently, HPLC has been more preferable because of the growing need for the individual analysis of products. Before the HPLC analysis, manual processes such as a sample extraction and a sample condensation are required. Such manual processes may affect to the quality of results. Thus, we evaluated the application of a novel on-line supercritical fluid extraction/chromatography system for the cleaning validation.
For more information, go to ssi.shimadzu.com and follow us on Twitter @ShimdzuSSI
Regardless of the source, assessing a crude oil or a fuel for unwanted or intentionally added elemental constituents is a critical part of a quality control protocol. This poster showcases the effectiveness of the ICPE-9820 for the analysis of three petrochemical samples according to ASTM D7111.
Stability indicating method development and validation for the simultaneous e...pharmaindexing
Stability indicating method development and validation for the simultaneous estimation of rabeprazole sodium and ketorolac tromethamine in bulk and synthetic mixture by RP-HPLC
Glycans in antibody drugs may play roles in the antigenicity, pharmacokinetics and high-order structural stability of drugs, which could adversely affect drug safety and effectiveness. It is therefore necessary to investigate which glycans are present in antibody pharmaceuticals. This presentation introduces an example of the analysis of glycans. For more information, go to ssi.shimadzu.com.
Sensitive and selective detection of chemical residues in hops is necessary to ensure protection of consumers and the environment. Methods using LC-MS provide efficient and effective detection of chemical residues in a complex sample matrix such as hops. Presented here is an LC-MS method for detection of over 150 analytes in hops and a market survey of over 50 different hops pellets samples.
This presentation evaluates ASTM D7979-16 for the “direct” analysis of 30 PFCs and compares data to the solid-phase extraction EPA drinking water Method 537.
Practical Implementation of the New Elemental Impurities Guidelines May 2015SGS
The International Conference on Harmonization (ICH) released its Q3D Guideline for Elemental Impurities in December 2014, initiating reviews and changes in quality testing programs in bio/pharmaceutical companies around the world. In advance of the implementation dates, companies need to assess the risks of potential elemental impurities in their process and materials streams.
In this presentation, experts will review the requirements of elemental impurities guidelines from ICH, the European Pharmacopeia, and United States Pharmacopeia, outline practical recommendations to address implementation challenges, and discuss key considerations for analytical testing programs.
This application note describes the methodology and use of the Shimadzu ICPMS-2030 ICP mass spectrometer for the analysis of trace elements in drinking and fresh waters following the EPA 200.8 method. This method is also used for analysis of wastewater. Here, we demonstrate the stability and sensitivity of the ICPMS-2030 for EPA 200.8 analyses.
Analysis of Capsaicin and Dihydrocapsaicin in Chili Peppers Using the PerkinE...PerkinElmer, Inc.
Capsaicinoids are the compounds that produce the pungency, aroma and flavor of chili peppers. The two most abundant capsaicinoids in chili peppers are capsaicin (8-methyl-N-vanillyl-trans-6-nonenamide) and dihydrocapsaicin. Combined, these two make up close to 90% of the most pungent varieties of capsaicinoids, with capsaisin making up about 71%. The capsaicin content of peppers is one of the parameters that determine their commercial quality. The amount of capsaicin can vary, depending on the light intensity and temperature at which the plant is grown, the age of the fruit, and the position of the fruit in the plant. Besides their widespread uses in foods, capsaicinoids are increasingly being used as the active component in pharmaceuticals and have been used as an analgesic against arthritis pain and inflammation. They have also been reported to be active against neurogenic inflammation (as in pepper sprays) and have shown protective effects against high cholesterol levels and obesity. Considering the increased use of capsaicinoids in both foods and pharmaceuticals, there is an increasing demand for their accurate quantitation as part of monitoring the quality of chili peppers. In this regard, this application focuses on the extraction, HPLC separation and quantitation of capsaisin and dihydrocapsaicin in two store-bought chili pepper powders.
The presence of Per- and Polyfluorinated Alkyl Substances (PFAS) in drinking water is being thoroughly studied due to the persistence of these compounds in the environment and their potential health effects. However, there is limited knowledge about the occurrence of these chemicals in bottled water, despite the increasing concerns about PFAS in the food supply. This poster shows results from a fast and simple direct injection method similar to draft EPA method 8237, using the Shimadzu triple quad LCMS-8050 to analyze seven commercially available samples of bottled water for 24 PFAS.
The automation of sample preparation has become an increasingly important component for reproducible and operator-independent experiments. This work outlines novel strategies that are being utilized for automated online and offline sample preparation to achieve specific goals, such as a host of applications including targeting post-translationally modified proteins, non-tryptic peptides, and intact proteins.
Development and validation of a stability-indicating HPLC method for the simultaneous determination of Losartan potassium, hydrochlorothiazide, and their degradationproducts
Cleaning validation is necessary to establish the quality and safety of pharmaceutical drug products. In cleaning validation protocols, direct sampling is performed with swabs, which are sticks with textiles at one end. The sample on the swab after swabbing the surface of equipment is analyzed with a TOC analyzer and HPLC. Recently, HPLC has been more preferable because of the growing need for the individual analysis of products. Before the HPLC analysis, manual processes such as a sample extraction and a sample condensation are required. Such manual processes may affect to the quality of results. Thus, we evaluated the application of a novel on-line supercritical fluid extraction/chromatography system for the cleaning validation.
For more information, go to ssi.shimadzu.com and follow us on Twitter @ShimdzuSSI
Regardless of the source, assessing a crude oil or a fuel for unwanted or intentionally added elemental constituents is a critical part of a quality control protocol. This poster showcases the effectiveness of the ICPE-9820 for the analysis of three petrochemical samples according to ASTM D7111.
Stability indicating method development and validation for the simultaneous e...pharmaindexing
Stability indicating method development and validation for the simultaneous estimation of rabeprazole sodium and ketorolac tromethamine in bulk and synthetic mixture by RP-HPLC
Glycans in antibody drugs may play roles in the antigenicity, pharmacokinetics and high-order structural stability of drugs, which could adversely affect drug safety and effectiveness. It is therefore necessary to investigate which glycans are present in antibody pharmaceuticals. This presentation introduces an example of the analysis of glycans. For more information, go to ssi.shimadzu.com.
Sensitive and selective detection of chemical residues in hops is necessary to ensure protection of consumers and the environment. Methods using LC-MS provide efficient and effective detection of chemical residues in a complex sample matrix such as hops. Presented here is an LC-MS method for detection of over 150 analytes in hops and a market survey of over 50 different hops pellets samples.
This presentation discusses continuous monitoring and why a new method is needed that measures total nitrogen (TN) as a single result. High temperature catalytic oxidation (HTCO) is also presented as an method for monitoring TN. For more information, go to ssi.shimadzu.com or follow Shiamdzu on Twitter @shimadzussi. Thanks for viewing.
Weiber's Multi function reactor is an ideal instrument for performing multiple functions as ascertaining Chemical
Oxygen Demand, i.e. COD and TP / TN. COD is necessary to ascertain the oxygen requirement of waste water prior to its release into the environment, so that it can be monitored and controlled to avoid harmful effects on the nature, human beings, etc.
Analysis based Method development & Validation projects will be providedanaloglabs
1. ICH Guidelines
2. Assay , Dissolution, Content Uniformity & Related substances Validation
3. Cleaning Validation
4. Preparation of Protocol & Report
5. How to submit Thesis
6. Calculation all parameters
7. Explanation of entire project process for mini projects (B.Pharmacy), Major Projects (M.Pharmacy and M.Sc) and Phd thesis for presentation and paper submission
Analog Labs - SAS IN PHARMA INDUSTRY & Basic CDM:analoglabs
SAS – Basic Training & Complete Material short term 1 day training – Rs 1500/-
Following Material will be provided
1. SAS interview Questions and answers
2. Certification eBooks & Training material
4. Software
5. Projects - Clinical, market research & Finance
6. Sample programmes & Tutorials (cDISC)
7. Resumes tips & Assignments for Practice
Analog Labs- Analytical validation and Method development Training in AR&Danaloglabs
I. Analytical Method Development & Validation by HPLC long term (only for groups i.e. min 3 students): Fee Rs.3000/- [Theory , Interview Material , Certificate] – 4 days (Mon – Thus)
1. Concept & Method development by HPLC
2. ICH Guidelines
3. Method validation by HPLC - Assay, Dissolution, Content Uniformity & Related substances Validation
4. Cleaning Validation
5. Preparation of Protocol & Report
6. Interview based training
II. Analytical Method Development & Validation by HPLC short term (only for groups i.e. min 5 students): Fee Rs.1500/- [Theory , Interview Orient Material , Certificate] – 2 days (Mon – Tues)
1. Concept & Method development by HPLC
2. ICH Guidelines
3. Method validation by HPLC - Assay, Dissolution, Content Uniformity & Related substances Validation
4. Cleaning Validation
5. Preparation of Protocol & Report
6. Interview based training
HPLC[ HIGH PERPROMANCE LIQUID CHROMATOGRAPHY OR HIGH PRESSURE LIQUID CHROMAT...Dr. Ravi Sankar
GASSCHROMATOGRAPHY[GC], ADVANCED STUDY OF THE FOLLOWING AND THEIR APPLICATIONS, INTRODUCTION, THEORY, COLUMN OPERATION,INSTRUMENTATION AND DETECTION,APPLICATIONS AND ADVANTAGES OF GC,PRINCIPLE OF SEPARATION IN GC, HOW GC MECHINE WORKS? COLUMN, DETECTORS.
BY P.RAVISANKAR, VIGNAN PHARMACY COLLEGE, VADLAMUDI, GUNTUR, A.P, INDIA.
A pitch deck template with sample copy to help technology startups sell their business concept to angel investors and VCs. Inspired by pitch deck words of wisdom from Dave McClure (500 Startups), AirBnb, Guy Kawasaki and Venture Hacks (the folks behind AngelList).
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NEED HELP WITH YOUR PITCH DECK?
See how I can help then book a free call @ https://pitchdeckcoach.com/
MORE PITCH DECK RESOURCES @ https://pitchdeckcoach.com/pitch-deck-template#resources
CTInstruments Application Note - Determination of 11 Cannabinoids in EdiblesDusan Kuzma
CTInstruments is an award-winning manufacturer of $14990 HPLC used for testing hemp and cannabis products. This application note offers information about testing edibles.
CTInstruments Application Note - Determination of 11 Cannabinoids in BiomassDusan Kuzma
CTInstruments is an award-winning manufacturer of $14990 HPLC used for testing hemp and cannabis products. This application note offers information about testing biomass and flower.
Application of High Performance Thin Layer Chromatography with Densitometry f...iosrphr_editor
The IOSR Journal of Pharmacy (IOSRPHR) is an open access online & offline peer reviewed international journal, which publishes innovative research papers, reviews, mini-reviews, short communications and notes dealing with Pharmaceutical Sciences( Pharmaceutical Technology, Pharmaceutics, Biopharmaceutics, Pharmacokinetics, Pharmaceutical/Medicinal Chemistry, Computational Chemistry and Molecular Drug Design, Pharmacognosy & Phytochemistry, Pharmacology, Pharmaceutical Analysis, Pharmacy Practice, Clinical and Hospital Pharmacy, Cell Biology, Genomics and Proteomics, Pharmacogenomics, Bioinformatics and Biotechnology of Pharmaceutical Interest........more details on Aim & Scope).
CTInstruments Application Note - Determination of 11 Cannabinoids in ExtractsDusan Kuzma
CTInstruments is an award-winning manufacturer of $14990 HPLC used for testing hemp and cannabis products. This application note offers information about testing extracts.
CTInstruments Application Note - Determination of 11 Cannabinoids in Industr...Dusan Kuzma
CTInstruments is an award-winning manufacturer of $14990 HPLC used for testing hemp and cannabis products. This application note offers information about testing industrial hemp biomass and flower.
Acusera Third Party Quality Controls for Medical Laboratories Randox
With over 350 parameters available in our Acusera range, choice and flexibility is guaranteed. Moreover the availability of truly independent third party controls coupled with the added advantages of highly accurate target values, increased stability and unparalleled quality will optimise performance, save valuable time and minimise waste in any laboratory.
Our comprehensive range of multi-analyte controls have been uniquely developed with ease of use in mind, combining up to 100 parameters in one convenient control laboratories can significantly reduce the need for multiple, costly single analyte controls.
Consolidation
100% human controls for immunoassay purposes
Most accurate target values
Unrivalled stability
Most consistent controls
True third party controls
This poster shows an HPLC method which builds on the well-established potency method using the Shimadzu Cannabis Analyzer for Potency™, a comprehensive and fast determination of 21 cannabinoids in only 15 minutes (including the wash-step). Cannabinoid profiles for commercially available dry hemp and finished tinctures are presented.
THE PRESENTATIONS DESCRIBES THE ICH GUIDELINE FOR RESIDUAL SOLVENTS i.e Q3C.
IT contains the basic of ICH and the complete description about the ICH guideline Q3C and its classification,limits,acceptance criteria in Pharma industries and the standards.
#Pharmaceuticalguideline
#medicine
#healthandmedicine
MicroPRO, A Rapid Microbiology Method Based on Flow Cytometryguest32bcc5
The MicroPRO is a rapid microbiology method based on flow cytometry to detect presence/absence of bacteria, yeast and molds in pharmaceutical and cosmetic products in 24 hours. It can also detect these micro-organisms quantitatively in 5 minutes in water and swabs.
Is a procedure or set of procedures intended to ensure that a manufactured or performed service adheres to a defined set of quality criteria or meets the requirements of client or customer. QC is similar to, but not identical with, quality assurance (QA)
Validation: Validation is a documented program that provides high degree of assurance that a specific process, method or system consistently produces a result meeting pre-determined acceptance criteria.
Similar to Cannabis Analyzer for Potency Provides Effortless Determination of Cannabinoid Content (20)
It is widely known that toxic metals can be found in some foods because they are naturally present in the Earth’s crust and can be released as pollutants into the water and soil used to grow food and through the food manufacturing and packaging processes. Exposure to these metals at an early age has been linked to developmental problems, behavior issues, and attention deficit hyperactivity disorder. The levels of toxic metals in baby foods are therefore more of a concern and require strict safety controls from raw materials to finished products. In this work, we explore and discuss the applicability of the Shimadzu inductively coupled plasma-mass spectrometer (Shimadzu ICPMS-2030) to the quantification of As, Cd, Hg and Pb in selected baby foods at this very low limit ranges.
Many people pursue ideas of “efficiency” as an ideal for daily life; the same can be true in the HPLC laboratory. In this work, we demonstrate the efficiency, throughput, and reliability of a dual injection system for finished pharmaceutical products and in-process active pharmaceutical ingredients
In this study, analysis of DRO and ORO (C10-C40) were performed using a Shimadzu GC-FID equipped with fast temperature programmable (FTP) column that aim to significantly reduce the run time for this analysis.
Current sample preparation techniques for PFAS analysis are laborious and not easily automated. In this study, supercritical fluid extraction (SFE) was evaluated as an alternative sample preparation technique for the extraction of eighteen PFAS compounds from fish tissue, as a preconcentration step prior to their analysis by LC-MS/MS.
Infrared microscopy, also referred to as FTIR microscopy, is ideal for identification of trace evidence in forensics and characterizing small particles in wide varieties of other fields. Combining the accurate material and chemical identification of FTIR spectroscopy with the ability to focus directly on micro-sized particles, makes this an indispensable technique. This presentation provides a couple of examples related to drug analysis and identification of explosives.
In this study, a new Shimadzu electrolytic suppressor was used as part of a Shimadzu modular IC system to determine inorganic anions according to methods EPA 300.
Multi-layered materials are commonly used in various industries and may alter the mechanical, acoustic and optical properties of materials. Identifying the chemical composition of different layers by studying the cross section of a multi-layered film is important in research and development of composite materials. This presentation showcases the use of an FTIR microscope to acquire high-resolution data of the cross section of composite films. Analysis of the FTIR spectra helps to understand the formulation of different layers of polymer film.
This presentation showcases two UHPLC-PDA methods to separate three isomers of tocopherol (vitamin E). The quick 5-minute method will allow for vitamin E identification and quantitation, while the 10-minute method will also allow for determination between nicotine or cannabinoid-based products.
The hazardous impact of microplastics in aquatic environments calls for more scientific research to understand their occurrence, effects and mitigation strategies. This work describes the analysis of primary and secondary microplastics using FTIR and FTIR microscopy techniques.
Analysis for and quantification of sulfur in crude oil, natural gas, petrochemicals, and industrial chemicals is critical to ensuring quality, process control, and safety for refinery, processors, and users. Understanding the speciation and concentration of sulfur compounds is vital in the hydrocarbon processing industry. Gas chromatography with sulfur chemiluminescence detection (GC-SCD) is one of the most powerful tools for sulfur analysis of hydrocarbons. This poster showcases the use of a new SCD for analysis according to various ASTM methods.
This presentation presents a method using a high-resolution Q-TOF LCMS to investigate extractables and leachables in a plastic sandwich bag, clear plastic cup, and aluminum foil.
Multiple Federal and State Agencies (e.g. EPA, DOD, DEQs and DEPs) in the United States as well as international organizations (e.g. ASTM) are quickly publishing new analytical methodologies for PFAS monitoring and establishing more stringent limits. Liquid Chromatography with Mass Spectrometry-based detection is established as the most suitable technology for meeting the requirements from official methods released up to date for monitoring PFAS. A comparison of instruments’ performance was conducted in this work.
Using a custom script and robotic autosampler with syringe swap capability, a protocol was developed to automatically prepare calibration and check standards, perform internal standard addition, and perform headspace (HS) injections into a GCMS. This study presents the quantitative accuracy and reproducibility results of four analytes tested using GCMS in combination with the AOC-6000 multifunction robotic autosampler.
Tensile testing is one method routinely used to determine the mechanical properties of plastics. This piece presents an example of measuring the mechanical properties of acrylonitrile butadiene styrene (ABS), Polyoxymethylene (POM), Polyethylene terephthalate (PET) and polystyrene (PS)
Gunshot residue (GSR) is the collective name of the complex mixture of organic and inorganic particles originating from the firearm, the firearm ammunition and the combustion products. Current testing methods primarily employ the use of scanning electron microscopy, which places the lead focus on inorganic components. Utilizing Gas Chromatography/Mass Spectrometry to identify unknown organic compounds creates a powerful tool in the forensics market, specifically GSR. This presentation examines using thermal desorption to extract residue constituents from articles of clothing to determine if it could be an effective technique in analyzing GSR for forensic analysis.
There is high demand for oxysterol quantitation due to their correlation with neurodegenerative diseases. The ratios of various oxysterols in biological fluids are used by researchers to study disease states. This application presents a fast, sensitive LC-MS/MS method using the LCMS-8060, with detection quantitation limits determined using multiple reaction monitoring mode for each analyte.
EPA Method 200.7, Trace Elements in Water, Solids, and Biosolids by Inductively Coupled Plasma-Atomic Emission Spectrometry, describes the procedure and requirements for multi-element determinations by ICP-AES. This presentation demonstrates the capability of the ICPE-9820, with the ASC-9800 Auto-sampler and the Standard Addition Kit, to produce quick, accurate results that comply with the method.
(May 29th, 2024) Advancements in Intravital Microscopy- Insights for Preclini...Scintica Instrumentation
Intravital microscopy (IVM) is a powerful tool utilized to study cellular behavior over time and space in vivo. Much of our understanding of cell biology has been accomplished using various in vitro and ex vivo methods; however, these studies do not necessarily reflect the natural dynamics of biological processes. Unlike traditional cell culture or fixed tissue imaging, IVM allows for the ultra-fast high-resolution imaging of cellular processes over time and space and were studied in its natural environment. Real-time visualization of biological processes in the context of an intact organism helps maintain physiological relevance and provide insights into the progression of disease, response to treatments or developmental processes.
In this webinar we give an overview of advanced applications of the IVM system in preclinical research. IVIM technology is a provider of all-in-one intravital microscopy systems and solutions optimized for in vivo imaging of live animal models at sub-micron resolution. The system’s unique features and user-friendly software enables researchers to probe fast dynamic biological processes such as immune cell tracking, cell-cell interaction as well as vascularization and tumor metastasis with exceptional detail. This webinar will also give an overview of IVM being utilized in drug development, offering a view into the intricate interaction between drugs/nanoparticles and tissues in vivo and allows for the evaluation of therapeutic intervention in a variety of tissues and organs. This interdisciplinary collaboration continues to drive the advancements of novel therapeutic strategies.
Introduction:
RNA interference (RNAi) or Post-Transcriptional Gene Silencing (PTGS) is an important biological process for modulating eukaryotic gene expression.
It is highly conserved process of posttranscriptional gene silencing by which double stranded RNA (dsRNA) causes sequence-specific degradation of mRNA sequences.
dsRNA-induced gene silencing (RNAi) is reported in a wide range of eukaryotes ranging from worms, insects, mammals and plants.
This process mediates resistance to both endogenous parasitic and exogenous pathogenic nucleic acids, and regulates the expression of protein-coding genes.
What are small ncRNAs?
micro RNA (miRNA)
short interfering RNA (siRNA)
Properties of small non-coding RNA:
Involved in silencing mRNA transcripts.
Called “small” because they are usually only about 21-24 nucleotides long.
Synthesized by first cutting up longer precursor sequences (like the 61nt one that Lee discovered).
Silence an mRNA by base pairing with some sequence on the mRNA.
Discovery of siRNA?
The first small RNA:
In 1993 Rosalind Lee (Victor Ambros lab) was studying a non- coding gene in C. elegans, lin-4, that was involved in silencing of another gene, lin-14, at the appropriate time in the
development of the worm C. elegans.
Two small transcripts of lin-4 (22nt and 61nt) were found to be complementary to a sequence in the 3' UTR of lin-14.
Because lin-4 encoded no protein, she deduced that it must be these transcripts that are causing the silencing by RNA-RNA interactions.
Types of RNAi ( non coding RNA)
MiRNA
Length (23-25 nt)
Trans acting
Binds with target MRNA in mismatch
Translation inhibition
Si RNA
Length 21 nt.
Cis acting
Bind with target Mrna in perfect complementary sequence
Piwi-RNA
Length ; 25 to 36 nt.
Expressed in Germ Cells
Regulates trnasposomes activity
MECHANISM OF RNAI:
First the double-stranded RNA teams up with a protein complex named Dicer, which cuts the long RNA into short pieces.
Then another protein complex called RISC (RNA-induced silencing complex) discards one of the two RNA strands.
The RISC-docked, single-stranded RNA then pairs with the homologous mRNA and destroys it.
THE RISC COMPLEX:
RISC is large(>500kD) RNA multi- protein Binding complex which triggers MRNA degradation in response to MRNA
Unwinding of double stranded Si RNA by ATP independent Helicase
Active component of RISC is Ago proteins( ENDONUCLEASE) which cleave target MRNA.
DICER: endonuclease (RNase Family III)
Argonaute: Central Component of the RNA-Induced Silencing Complex (RISC)
One strand of the dsRNA produced by Dicer is retained in the RISC complex in association with Argonaute
ARGONAUTE PROTEIN :
1.PAZ(PIWI/Argonaute/ Zwille)- Recognition of target MRNA
2.PIWI (p-element induced wimpy Testis)- breaks Phosphodiester bond of mRNA.)RNAse H activity.
MiRNA:
The Double-stranded RNAs are naturally produced in eukaryotic cells during development, and they have a key role in regulating gene expression .
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.
Professional air quality monitoring systems provide immediate, on-site data for analysis, compliance, and decision-making.
Monitor common gases, weather parameters, particulates.
THE IMPORTANCE OF MARTIAN ATMOSPHERE SAMPLE RETURN.Sérgio Sacani
The return of a sample of near-surface atmosphere from Mars would facilitate answers to several first-order science questions surrounding the formation and evolution of the planet. One of the important aspects of terrestrial planet formation in general is the role that primary atmospheres played in influencing the chemistry and structure of the planets and their antecedents. Studies of the martian atmosphere can be used to investigate the role of a primary atmosphere in its history. Atmosphere samples would also inform our understanding of the near-surface chemistry of the planet, and ultimately the prospects for life. High-precision isotopic analyses of constituent gases are needed to address these questions, requiring that the analyses are made on returned samples rather than in situ.
Richard's entangled aventures in wonderlandRichard 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.
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Cannabis Analyzer for Potency Provides Effortless Determination of Cannabinoid Content
1. Cannabis Analyzer for Potency Provides
Effortless Determination of Cannabinoid Content
GrowYourLab.com
2. Topics
1. Interest in Cannabis
2. A brief overview of Cannabis chemistry and potency testing
3. A Turn-Key Potency Solution – The Cannabis Analyzer for Potency
4. What the Cannabis Analyzer solution consists of
5. Goal-oriented Method packages
6. Quantitative accuracy and analytical results
7. Sample preparation example
8. Customer workflow
9. Re-ordering consumables
Shimadzu does not support or promote the use of its products or services in connection with illegal use, cultivation or trade of
cannabis products. Shimadzu products are intended to be used for research use only or state approved medical research.
Shimadzu Scientific Instruments is not condoning the use of recreational nor medical marijuana.
3. Interest in Cannabis
Many US states have now legalized cannabis for
either medical or “adult use” (recreational) or
both. Medical cannabis programs exist in over
half of the US states, and full recreational
markets now exist in four states.
Myriad health benefits have been reported for
cannabis, including; general pain reduction,
anti-nausea, reduction of seizures, and various
aspects of autism.
By 2020, legal cannabis product market sales
are expected to surpass $22 billion, with adult
use sales comprising about 53% of the total
legal market.
4. A Brief Overview of Cannabis Testing
Cannabis contains more than 500 unique compounds,
including over 80 chemical alkaloids known as
cannabinoids.
QC testing for cannabinoids is essential for the accurate
labeling of cannabis products in both medical and
recreational cannabis markets. Cannabis “potency” is
normally reserved for the quantitation of the major
cannabinoids, principally THCA, THC, CBD, and CBN.
HPLC has emerged as the gold standard for potency
determinations because separation and detection of the
cannabinoids is done without causing any decomposition
of the naturally abundant THCA. This acid form undergoes
decarboxylation to THC under the influence of heat and
light.
6. A Turn-Key Potency Solution
Choice of 3 Proven HPLC Methods
Three proprietary instrument methods to meet your analytical objectives.
No need to spend valuable lab time developing methods – just run
samples.
Turnkey HPLC Analyzer
The package is designed for potency determination through quantitation
of the active constituents. It includes all required hardware, software,
consumables, and analysis workflow so the analyst is running samples in
the shortest possible time.
A complete turnkey HPLC analyzer for quantitative
determination of cannabinoid content
3 Years Warranty and Preventive Maintenance
Never worry about whether your potency analyzer will be fully functional
and running samples.
App Notes
Reports
Method Package
Column, Guard
Columns
Certified
Standards
Mobile
Phase
7. A Turn-Key Potency Solution
A complete turnkey HPLC analyzer for quantitative
determination of cannabinoid content
Target Compound List
Tetrahydrocannabivarin (THCV)
d8-Tetrahydrocannabinoid (d8-THC)
d9-Tetrahydrocannabinoid (d9-THC)
d9-Tetrahydrocannabinolic acid (THCA)
Cannabidiol (CBD)
Cannabidiolic acid (CBDA)
Cannabidivarin (CBDV)
Cannabinol (CBN)
Cannabigerol (CBG)
Cannabigerolic acid (CBGA)
Cannabichromene (CBC)
App Notes
Reports
Method Package
Column, Guard
Columns
Certified
Standards
Mobile
Phase
8. A Turn-Key Potency Solution
High Resolution HPLC Method Package
High Sensitivity HPLC Method Package
High Throughput HPLC Method Package
3 Year Value Plan
Designed for analysis of the 10 most commonly requested
cannabinoids in under 8 minutes. This is the original method
developed by Shimadzu in collaboration with industry laboratories.
(Does not include THCV.)
Adds THCV to the target analyte list, with an instrument cycle time
of under 10 minutes. The short analysis time produces the sharpest
chromatographic peaks for the best overall sensitivity.
Presents full baseline resolution for all 11 compounds and an
analysis time under 30 minutes. This method is preferred for
research purposes, or when additional compounds must be added
to the analysis in response to new state regulatory requirements.
Provides 3 consecutive and continuous years of full warranty
coverage following installation, and scheduled Premium Preventive
Maintenance visits.
All three analytical method files are included with the Cannabis Analyzer for Potency Base Package.
The three Method Packages include all consumables required to run the method: the analytical
column, package of 5 guard columns, guard column holders, the CRM standard and mobile phase.
App Notes
Reports
Method Package
Column, Guard
Columns
Certified
Standards
Mobile
Phase
9. A Turn-Key Potency Solution
Quality Statement
Mobile phase solvents are pre-mixed (method
specific) and UHPLC grade
CRM standard mixtures are certified for
quantitative accuracy
Methods are exhaustively tested for:
- Ruggedness
- Repeatability
- Quantitative Accuracy
10. Goal-Oriented Methods
High Throughput Method
• When high sample throughput is paramount –
60 samples per 8 hr. day
• Quantitative for 10 cannabinoids (no THCV)
3.0 4.0 5.0 min
0
25
50
75
mV
CBDV
CBDA
CBGA
CBG
CBD
CBN
d9-THC
d8-THC
CBC
THCA
10 mg/L standard mixture
App Notes
Reports
Method Package
Column, Guard
Columns
Certified
Standards
Mobile
Phase
11. Goal-Oriented Methods
2.5 5.0 min
0
10
20
30
40
50
mV
CBDV
CBDA
CBGA
CBG
CBD
THCV
CBN
d9-THC
d8-THC
CBC
THCA
High Sensitivity Method
• When THCV is important, yet with good sample
throughput – 48 samples per 8 hr. day
• Quantitative for 11 cannabinoids (incl. THCV)
10 mg/L standard mixture
App Notes
Reports
Method Package
Column, Guard
Columns
Certified
Standards
Mobile
Phase
12. Goal-Oriented Methods
10.0 15.0 20.0 min
0
25
50
75
mV
CBDV
THCV
CBD
CBG
CBDA
CBGA
CBN
d9-THC
d8-THC
CBC
THCA-A
High Resolution Method
• For baseline separation of 11+ components,
including THCV. Minimum Resolution = 2.0
• 16 samples per 8 hr. day
• Add cannabinoid targets as regulations change.
10 mg/L standard mixture
App Notes
Reports
Method Package
Column, Guard
Columns
Certified
Standards
Mobile
Phase
13. Standard Curves (High Sensitivity Method)
R2 > 0.999 for all targets
Quantitative Accuracy
Level (ppm) Accuracy % (Bias) Range
Low 2 109.7 – 111.1 ± 1.4
Med 20 101.2 – 103.4 ± 2.2
High 70 99.2 – 100.2 ± 1.0App Notes
Reports
Method Package
Column, Guard
Columns
Certified
Standards
Mobile
Phase
14. High Sensitivity Method
Limits of Detection and Quantitation
App Notes
Reports
Method Package
Column, Guard
Columns
Certified
Standards
Mobile
Phase
Target LOQ (mg/L) LOD (mg/L)
CBDV 0.43 0.14
CBDA 0.55 0.18
CBGA 0.53 0.18
CBG 0.59 0.20
CBD 0.59 0.20
THCV 0.62 0.20
CBN 0.37 0.12
d9-THC 0.52 0.17
d8-THC 0.64 0.21
CBC 0.60 0.20
All values correspond to Dry WT % of less than 0.1%
15. Analytical Results
Quantitative Example:
DRY WT% = [Target] x (Dilution) x (Extraction Vol./Dry wt mg) x 100
THCA WT% = 3.8% = [18.9 mg/L] x(20/1) x (0.02 L/200 mg) x 100
d9-THC WT% = 2.0% = [10.2 mg/L] x(20/1) x (0.02 L/200 mg) x 100
@ 10 mg/L
App Notes
Reports
Method Package
Column, Guard
Columns
Certified
Standards
Mobile
Phase
16. Sample Preparation Guidance
• Weigh 200 mg of flower or leaf cuttings into 50 mL centrifuge
tube.
• Add two 9.5 mm steel balls into the tube.
• Shake at 1000 rpm for 1 min. with the 2010 Geno/Grinder.
• Add 20 mL of methanol to the tube.
• Shake at 1000 rpm for 1 min.
• Wait for 15 min.
• Mix using a vortex mixer for 1 min.
• Transfer 1 mL of the mixture into a 1.5 mL micro-tube and
centrifuge at 3000 rpm for 5 min.
• Transfer 100 μL of supernatant to a new 1.5 mL micro-tube.
• Add 900 μL of methanol.
• Filter the mixture through a 0.45 μm syringe filter and transfer
to a 1.5 mL sample vial.
Extracts from flowers, leaves, stems
17. User Workflow
1. Setting samples in the Analysis Screen
Standards set up
automatically
according to the
method
Sample Name
Sample ID
Dry Wt Amt.
Extraction Vol.
Dil. Factor
Unknowns to be
analyzed
22. Need More Info?
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