Presentation1 GLC.pptx
•Download as PPTX, PDF•
0 likes•8 views
Gas-liquid chromatography is an effective method for separating, identifying, and quantifying complex mixtures. It has high separation efficiency and reproducibility compared to other chromatography methods. Gas-liquid chromatography also offers high sensitivity, universal detection techniques, and columns that can be used for long periods of time. However, reference standards are needed to quantify very small amounts of a substance.
Report
Share
Report
Share
Recommended
Food contaminants dhaka university_august2014
This document discusses food contaminants and methods for their analysis. It defines contaminants as unintended substances in food, including naturally occurring toxins, pesticide and drug residues, heavy metals, and chemical hazards from food processing. Maximum residue levels (MRLs) set legal limits for contaminants to protect consumers and ensure fair trade. Analysis methods include fast screening tests and more sophisticated confirmatory methods using techniques like LC-MS/MS and GC-MS/MS. Method validation establishes reliability through parameters like selectivity, accuracy, precision and reproducibility. The document presents examples of validated multi-residue methods for organochlorine pesticides in fish and formaldehyde in foods. Overall it aims to improve food safety in Bangladesh through a
HPLC: Principle and Maintenance with Application
High performance liquid chromatography (HPLC) is a significant qualitative and quantitative technique, usually used for the estimation of pharmaceutical and biological samples. The chromatography term is derived from the Greek words namely chroma (colour) and graphein (to write). The chromatography is very accepted technique and it is mostly used analytically. It is the most resourceful, safest, reliable and fastest chromatographic technique for the quality control of drug components. This technique involves 2 phases"™ stationary and mobile phases. There are different types of chromatographic techniques. The separation of constituents is based on the variation between the partition coefficients of the two phases. This article is primed with an aim to review different aspects of HPLC, such as principle, types, instrumentation and application with maintenance. Yogesh Kumar | Sayed Md Mumtaz | Mustaq Ahmad"HPLC: Principle and Maintenance with Application" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-5 , August 2018, URL: http://www.ijtsrd.com/papers/ijtsrd17134.pdf http://www.ijtsrd.com/pharmacy/pharmacology-/17134/hplc-principle-and-maintenance-with-application/yogesh-kumar
Qc
Experience of our senior brother/sister in different pharmaceutical industries of Bangladesh during their internship.
Gas chromatography-mass spectrometry (GC-MS)-an introduction
This document provides information about gas chromatography-mass spectrometry (GC-MS). It discusses that GC-MS combines gas chromatography and mass spectrometry to separate and identify organic compounds in a sample. The sample is vaporized and carried by a gas through a column where components are separated. The separated components enter the mass spectrometer where they are ionized and their mass detected to identify each compound. The document outlines the principle, instrumentation, sample requirements, and applications of GC-MS, such as environmental monitoring, forensics, and food and drug analysis.
Dhruti Avlani - TLC & HPTLC
Various chromatographic techniques can be employed for the qualitative and quantitative analysis of the drug. It is observed that HPTLC is the most widely used Chromatography instrument as it consumes less solvent for developing in less time. Reproducibility of results is also easy.
Advanced techniques in analysis of organic compound
Upasana Mohapatra submitted a research paper on advanced techniques for analysis of organic compounds. The paper described several techniques including chromatography-spectrometry combinations like HPLC-NMR that allow identification of organic molecules. Elemental analysis, electrochemistry, chromatography, and molecular spectrometry each provide different information for organic compound analysis. HPLC-NMR in particular allows complex mixtures to be separated and identified using NMR. The techniques discussed provide powerful tools for identification of organic compounds in various applications like metabolite analysis.
Instrument or Experimental Technique Used In Food Chemical Composition Analysis
This document discusses four main analytical instrument techniques used in food chemical composition analysis: gas chromatography (GC), high performance liquid chromatography (HPLC), differential scanning calorimeter (DSC), and ultraviolet-visible spectrophotometer. It provides an overview of each technique, including their aims and uses in food analysis. GC is used to separate and analyze compounds that can be vaporized, HPLC separates mixtures using liquid mobile and stationary phases, DSC measures heat flows during material transitions, and UV-VIS spectrophotometry determines substance identities and concentrations by measuring light absorption.
Recommended
Food contaminants dhaka university_august2014
This document discusses food contaminants and methods for their analysis. It defines contaminants as unintended substances in food, including naturally occurring toxins, pesticide and drug residues, heavy metals, and chemical hazards from food processing. Maximum residue levels (MRLs) set legal limits for contaminants to protect consumers and ensure fair trade. Analysis methods include fast screening tests and more sophisticated confirmatory methods using techniques like LC-MS/MS and GC-MS/MS. Method validation establishes reliability through parameters like selectivity, accuracy, precision and reproducibility. The document presents examples of validated multi-residue methods for organochlorine pesticides in fish and formaldehyde in foods. Overall it aims to improve food safety in Bangladesh through a
HPLC: Principle and Maintenance with Application
High performance liquid chromatography (HPLC) is a significant qualitative and quantitative technique, usually used for the estimation of pharmaceutical and biological samples. The chromatography term is derived from the Greek words namely chroma (colour) and graphein (to write). The chromatography is very accepted technique and it is mostly used analytically. It is the most resourceful, safest, reliable and fastest chromatographic technique for the quality control of drug components. This technique involves 2 phases"™ stationary and mobile phases. There are different types of chromatographic techniques. The separation of constituents is based on the variation between the partition coefficients of the two phases. This article is primed with an aim to review different aspects of HPLC, such as principle, types, instrumentation and application with maintenance. Yogesh Kumar | Sayed Md Mumtaz | Mustaq Ahmad"HPLC: Principle and Maintenance with Application" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-5 , August 2018, URL: http://www.ijtsrd.com/papers/ijtsrd17134.pdf http://www.ijtsrd.com/pharmacy/pharmacology-/17134/hplc-principle-and-maintenance-with-application/yogesh-kumar
Qc
Experience of our senior brother/sister in different pharmaceutical industries of Bangladesh during their internship.
Gas chromatography-mass spectrometry (GC-MS)-an introduction
This document provides information about gas chromatography-mass spectrometry (GC-MS). It discusses that GC-MS combines gas chromatography and mass spectrometry to separate and identify organic compounds in a sample. The sample is vaporized and carried by a gas through a column where components are separated. The separated components enter the mass spectrometer where they are ionized and their mass detected to identify each compound. The document outlines the principle, instrumentation, sample requirements, and applications of GC-MS, such as environmental monitoring, forensics, and food and drug analysis.
Dhruti Avlani - TLC & HPTLC
Various chromatographic techniques can be employed for the qualitative and quantitative analysis of the drug. It is observed that HPTLC is the most widely used Chromatography instrument as it consumes less solvent for developing in less time. Reproducibility of results is also easy.
Advanced techniques in analysis of organic compound
Upasana Mohapatra submitted a research paper on advanced techniques for analysis of organic compounds. The paper described several techniques including chromatography-spectrometry combinations like HPLC-NMR that allow identification of organic molecules. Elemental analysis, electrochemistry, chromatography, and molecular spectrometry each provide different information for organic compound analysis. HPLC-NMR in particular allows complex mixtures to be separated and identified using NMR. The techniques discussed provide powerful tools for identification of organic compounds in various applications like metabolite analysis.
Instrument or Experimental Technique Used In Food Chemical Composition Analysis
This document discusses four main analytical instrument techniques used in food chemical composition analysis: gas chromatography (GC), high performance liquid chromatography (HPLC), differential scanning calorimeter (DSC), and ultraviolet-visible spectrophotometer. It provides an overview of each technique, including their aims and uses in food analysis. GC is used to separate and analyze compounds that can be vaporized, HPLC separates mixtures using liquid mobile and stationary phases, DSC measures heat flows during material transitions, and UV-VIS spectrophotometry determines substance identities and concentrations by measuring light absorption.
Greener Analytical Chemistry
Analytical chemistry is the study and use of instrumental methods to identify, separate, and quantify matter. Green analytical chemistry aims to make these methods more environmentally friendly. Some greener extraction techniques discussed include accelerated solvent extraction, which uses less solvent and time than traditional techniques. Other techniques like solid phase microextraction and thin film microextraction are solvent-free. Greener instrumentation includes automation and integration of processes to reduce waste, and the use of greener solvents like ionic liquids and natural deep eutectic solvents. These techniques have industrial applications in pharmaceutical analysis and food quality testing that help to meet increasing demand while improving sustainability.
Greener Analytical Chemistry
Analytical chemistry is the study and use of instrumental methods to identify, separate, and quantify matter. Green analytical chemistry aims to make these methods more environmentally friendly. Some greener extraction techniques discussed include accelerated solvent extraction, which uses less solvent and time than traditional techniques. Other techniques like solid phase microextraction and thin film microextraction are solvent-free. Greener instrumentation includes automation and integration of processes to reduce waste, and the use of greener solvents like ionic liquids and natural deep eutectic solvents. These techniques have industrial applications in pharmaceutical analysis and food quality testing that help to meet increasing demand while improving sustainability.
Chromatographic Separation Tools Advantages and Disadvantages
The document discusses various chromatography techniques, providing advantages and disadvantages for each. Column chromatography allows separation of complex mixtures but is time-consuming and requires large volumes of solvents. Ion-exchange chromatography is powerful but requires low salt buffers. Gel-permeation chromatography provides molecular weight data but samples are diluted in the process. Affinity chromatography is highly selective but non-specific binding can occur. Paper and thin-layer chromatography are inexpensive and easy to use but provide only qualitative data. Gas chromatography is accurate but limited to volatile compounds. High performance liquid chromatography provides high separation capacity and reproducibility for a wide range of compounds.
PHARMACEUTICAL APPLICATIONS OF GAS CHROMATOGRAPHY(GC), PHARMACEUTICAL ANALYS...
This document discusses various pharmaceutical applications of gas chromatography (GC). It describes how GC allows for both rapid analysis in minutes and high sensitivity detection down to picogram levels. Key applications discussed include detection of pesticides, separation of gasoline components, analysis of ignitable liquids in arson cases, determination of drugs and metabolites in biological samples, and detection of volatile organic compounds (VOCs) in indoor air. GC can separate complex mixtures and is used in various industries like petrochemicals, forensics, and environmental testing.
DHI Pigment Standards - DHI Lab 2015
This document discusses using pigment analysis by HPLC to determine the composition and biomass of phytoplankton populations for aquatic monitoring programs. HPLC analysis of phytoplankton pigments is precise, objective, and faster than microscopy. It can provide information on temporal and spatial phytoplankton distribution, blooming events, and toxic species. DHI has over 15 years of experience isolating and determining pigment concentrations and provides pure pigment standards for HPLC calibration.
375 pesticide method_ Journal of chromatography publication
This document describes a method for analyzing 375 organic contaminants including pesticides, polychlorinated biphenyls (PCBs) and polyaromatic hydrocarbons (PAHs) in fruits and vegetables using gas chromatography coupled with triple quadrupole mass spectrometry (GC-MS/MS). Samples were extracted with ethyl acetate and cleaned up using dispersive solid phase extraction. The method was validated and achieved limits of quantification below 10 μg/L for most compounds. Recoveries from 70-110% and precision below 20% indicated the method was satisfactory. A semi-quantitative approach was also developed utilizing calibration curves, and provided accurate quantification of incurred samples within ±10% of direct quantification values.
Hyphenated techniques
Analytical chemistry involves separating, identifying, and quantifying components of matter. Hyphenated techniques combine two analytical methods, such as gas chromatography coupled with mass spectrometry (GC-MS). GC-MS separates chemical mixtures using gas chromatography and then identifies components using mass spectrometry. Other common hyphenated techniques include liquid chromatography-mass spectrometry (LC-MS) and gas chromatography-infrared spectroscopy (GC-IR). These coupled techniques provide enhanced sensitivity and accuracy for analyzing organic compounds, pollutants, drugs, proteins, and more.
Instrumental method of chemical analysis
Instrumental method of chemical analysis ,Glass electrode,Single beam Spectrometers, Instrumentation of Gas liquid Chromatography
Ion exchange cromatography and affinity chromatography
Introduction.
Bygone days.
Basic terms related to chromatography.
Different type of chromatography techniques.
Ion exchange chromatography:
Principle of ion exchange chromatography.
Resin selection in ion exchange chromatography.
Commonly used ion exchangers.
The applications of ion exchange chromatography.
Merits and demerits of ion exchange chromatography.
Affinity chromatography:
Why use affinity chromatography?
Steps involved.
An example illustrating about the technique.
Choice of ligand.
The applications of affinity chromatography.
Merits and demerits of affinity chromatography.
Conclusion.
Bibliography.
Green chromatography
This document discusses green chromatography and how it aims to reduce environmental pollution from analytical chemistry techniques like chromatography. It defines green chromatography as adapting separation methods to be more environmentally friendly. This can be done by using eco-friendly solvents like ethanol and water instead of toxic ones like acetonitrile, and by designing chromatography instruments that use less solvent. Green chromatography techniques like subcritical water chromatography can be applied to applications like analyzing skincare products and detecting organic pollutants in water.
IRJET- Characterisation of Grey Water and Treatment using Moving Bed Biof...
This document summarizes a study that characterized greywater and treated it using a Moving Bed Biofilm Reactor (MBBR). The study investigated how various factors like flow rate, hydraulic retention time, and MBBR fill rate affected the reactor's performance in removing organic matter from greywater. The researchers found that a flow rate of 60 L/d, hydraulic retention time of 36 hours, and MBBR fill rate of 30% produced the highest COD removal efficiency of 87.45%. The MBBR media provided a large surface area for microbial growth and effectively treated greywater.
Application of chromatography Technique in standardization of herbal drug
Chromatography is defined as a technique of isolation and identification of components or compounds or mixture into individual components by using the stationary phase and mobile phase. Plant materials are separated and purified by using various chromatographic techniques.
PRESENTATION.pptx
Near-infrared spectroscopy is a nondestructive technique that can simultaneously predict concentrations of substrates, products, and biomolecules in bio-process mixtures. It has various applications in bioprocessing including pharmaceutical manufacturing, medical testing, waste management, fermentation, and food analysis. NIR spectroscopy provides real-time process monitoring and control without damaging samples. It has advantages like low cost, minimal sample preparation, and ability to analyze both solid and liquid samples. However, issues like heterogeneous sample distributions and low analyte concentrations can impact accuracy.
Gas chromatography
This document provides an introduction to gas chromatography (GC). GC is a technique used to separate and analyze compounds that can be vaporized without decomposition. It works by carrying the sample compounds through a column via an inert gas mobile phase, where they interact differently with the stationary phase coating the column and elute out at different retention times. The retention time is specific to each compound and depends on its solubility in the mobile phase and affinity for the stationary phase. Various detectors are then used to quantify the separated components. The document discusses the principle, quantitative and qualitative analysis, and various applications of GC in fields like research, forensics, food analysis, and more.
INSTRUMENTAL ANALYSIS INTRODUCTION
This is an introduction to instrumental analysis, mainly hinged on validation, error identification and minimization.
Gas chromatography by Sadoon Ali Zahid
It is a basic presentation about gas chromatography,its components,working principle,procedure,applications and advantages over other.
PRESENTATION(0).pptx
Near-infrared spectroscopy is a nondestructive technique that can simultaneously predict concentrations of substrates, products, and biomass in bioprocesses. It has various applications in bioprocess monitoring and control, including in pharmaceutical manufacturing, medical diagnostics, waste management, fermentation, and food analysis. NIR spectroscopy provides real-time process data without disrupting production or requiring sampling. It has advantages of being low-cost, rapid, and not requiring extensive sample preparation.
BR-70346-Research-Production-Biofuel-BR70346-EN
This document discusses analytical techniques for monitoring various steps in biofuel production workflows, including:
- Chromatography (ion, liquid, gas) and near-infrared spectroscopy can analyze feedstock composition, quantify sugars and lipids, and detect contaminants throughout the biofuel production process.
- Techniques like ion chromatography, liquid chromatography, and gas chromatography with various detectors can characterize raw materials, monitor hydrolysis and fermentation, and test final product quality.
- Near-infrared spectroscopy provides fast analysis of feedstock composition for real-time process monitoring and quality control.
All techniques for food analysis.pdf
This document discusses instrumental techniques used for food analysis. It focuses on chromatography techniques like gas chromatography and liquid chromatography. Gas chromatography separates volatile compounds using a mobile gas phase and stationary liquid or solid phase. It is used with various detectors like FID, ECD, and NPD. Sampling techniques for GC include headspace analysis, thermal desorption, and purge and trap. Liquid chromatography also separates compounds but uses a mobile liquid phase. Hyphenated techniques like GC-MS and LC-MS combine chromatography with spectroscopy for identification. Other techniques discussed are spectroscopy, thermal analysis methods, and selecting the appropriate technique based on criteria like sensitivity, specificity, and nature of the food matrix.
Sampling, extraction, cleanup and estimation of insecticide residue by variou...
This document discusses the process of pesticide residue analysis, which involves 4 main steps: 1) sampling the crop, 2) extracting the pesticide, 3) cleaning up the extract, and 4) analyzing the residue. It provides details on various techniques used for each step, including different extraction, clean-up, and analysis methods like gas chromatography, thin layer chromatography, and spectrophotometry. The goal of pesticide residue analysis is to accurately measure extremely small amounts of pesticides remaining in food after harvesting or storage.
Chapter_4_Marketing_Mix_Price,_Product,_Promotion_and_Place.pptx
The document discusses various aspects of marketing mix and pricing strategies. It explains the 4Ps of marketing mix - product, price, place and promotion. It also discusses different pricing approaches including cost-based pricing, value-based pricing and competition-based pricing. The document provides examples and details on factors to consider when setting prices, product pricing strategies, and pricing of product mixes.
Part III-Managerial Accounting.pptx
Cost and management accounting provides managers with detailed cost information to control operations and plan for the future. Cost accounting information is used for financial accounting and by managers for decision making. Management accounting provides economic and financial information for internal users. Cost concepts like cost objects, cost pools, and cost drivers are introduced. Costs are classified by elements, functions, traceability, behavior, and controllability. Product costs include direct materials, direct labor, and manufacturing overhead and become inventory until goods are sold. Period costs are expenses of the current period. Job order costing and process costing are introduced as costing systems. Just-in-time processing, activity-based costing, cost-volume-profit analysis, contribution margin,
More Related Content
Similar to Presentation1 GLC.pptx
Greener Analytical Chemistry
Analytical chemistry is the study and use of instrumental methods to identify, separate, and quantify matter. Green analytical chemistry aims to make these methods more environmentally friendly. Some greener extraction techniques discussed include accelerated solvent extraction, which uses less solvent and time than traditional techniques. Other techniques like solid phase microextraction and thin film microextraction are solvent-free. Greener instrumentation includes automation and integration of processes to reduce waste, and the use of greener solvents like ionic liquids and natural deep eutectic solvents. These techniques have industrial applications in pharmaceutical analysis and food quality testing that help to meet increasing demand while improving sustainability.
Greener Analytical Chemistry
Analytical chemistry is the study and use of instrumental methods to identify, separate, and quantify matter. Green analytical chemistry aims to make these methods more environmentally friendly. Some greener extraction techniques discussed include accelerated solvent extraction, which uses less solvent and time than traditional techniques. Other techniques like solid phase microextraction and thin film microextraction are solvent-free. Greener instrumentation includes automation and integration of processes to reduce waste, and the use of greener solvents like ionic liquids and natural deep eutectic solvents. These techniques have industrial applications in pharmaceutical analysis and food quality testing that help to meet increasing demand while improving sustainability.
Chromatographic Separation Tools Advantages and Disadvantages
The document discusses various chromatography techniques, providing advantages and disadvantages for each. Column chromatography allows separation of complex mixtures but is time-consuming and requires large volumes of solvents. Ion-exchange chromatography is powerful but requires low salt buffers. Gel-permeation chromatography provides molecular weight data but samples are diluted in the process. Affinity chromatography is highly selective but non-specific binding can occur. Paper and thin-layer chromatography are inexpensive and easy to use but provide only qualitative data. Gas chromatography is accurate but limited to volatile compounds. High performance liquid chromatography provides high separation capacity and reproducibility for a wide range of compounds.
PHARMACEUTICAL APPLICATIONS OF GAS CHROMATOGRAPHY(GC), PHARMACEUTICAL ANALYS...
This document discusses various pharmaceutical applications of gas chromatography (GC). It describes how GC allows for both rapid analysis in minutes and high sensitivity detection down to picogram levels. Key applications discussed include detection of pesticides, separation of gasoline components, analysis of ignitable liquids in arson cases, determination of drugs and metabolites in biological samples, and detection of volatile organic compounds (VOCs) in indoor air. GC can separate complex mixtures and is used in various industries like petrochemicals, forensics, and environmental testing.
DHI Pigment Standards - DHI Lab 2015
This document discusses using pigment analysis by HPLC to determine the composition and biomass of phytoplankton populations for aquatic monitoring programs. HPLC analysis of phytoplankton pigments is precise, objective, and faster than microscopy. It can provide information on temporal and spatial phytoplankton distribution, blooming events, and toxic species. DHI has over 15 years of experience isolating and determining pigment concentrations and provides pure pigment standards for HPLC calibration.
375 pesticide method_ Journal of chromatography publication
This document describes a method for analyzing 375 organic contaminants including pesticides, polychlorinated biphenyls (PCBs) and polyaromatic hydrocarbons (PAHs) in fruits and vegetables using gas chromatography coupled with triple quadrupole mass spectrometry (GC-MS/MS). Samples were extracted with ethyl acetate and cleaned up using dispersive solid phase extraction. The method was validated and achieved limits of quantification below 10 μg/L for most compounds. Recoveries from 70-110% and precision below 20% indicated the method was satisfactory. A semi-quantitative approach was also developed utilizing calibration curves, and provided accurate quantification of incurred samples within ±10% of direct quantification values.
Hyphenated techniques
Analytical chemistry involves separating, identifying, and quantifying components of matter. Hyphenated techniques combine two analytical methods, such as gas chromatography coupled with mass spectrometry (GC-MS). GC-MS separates chemical mixtures using gas chromatography and then identifies components using mass spectrometry. Other common hyphenated techniques include liquid chromatography-mass spectrometry (LC-MS) and gas chromatography-infrared spectroscopy (GC-IR). These coupled techniques provide enhanced sensitivity and accuracy for analyzing organic compounds, pollutants, drugs, proteins, and more.
Instrumental method of chemical analysis
Instrumental method of chemical analysis ,Glass electrode,Single beam Spectrometers, Instrumentation of Gas liquid Chromatography
Ion exchange cromatography and affinity chromatography
Introduction.
Bygone days.
Basic terms related to chromatography.
Different type of chromatography techniques.
Ion exchange chromatography:
Principle of ion exchange chromatography.
Resin selection in ion exchange chromatography.
Commonly used ion exchangers.
The applications of ion exchange chromatography.
Merits and demerits of ion exchange chromatography.
Affinity chromatography:
Why use affinity chromatography?
Steps involved.
An example illustrating about the technique.
Choice of ligand.
The applications of affinity chromatography.
Merits and demerits of affinity chromatography.
Conclusion.
Bibliography.
Green chromatography
This document discusses green chromatography and how it aims to reduce environmental pollution from analytical chemistry techniques like chromatography. It defines green chromatography as adapting separation methods to be more environmentally friendly. This can be done by using eco-friendly solvents like ethanol and water instead of toxic ones like acetonitrile, and by designing chromatography instruments that use less solvent. Green chromatography techniques like subcritical water chromatography can be applied to applications like analyzing skincare products and detecting organic pollutants in water.
IRJET- Characterisation of Grey Water and Treatment using Moving Bed Biof...
This document summarizes a study that characterized greywater and treated it using a Moving Bed Biofilm Reactor (MBBR). The study investigated how various factors like flow rate, hydraulic retention time, and MBBR fill rate affected the reactor's performance in removing organic matter from greywater. The researchers found that a flow rate of 60 L/d, hydraulic retention time of 36 hours, and MBBR fill rate of 30% produced the highest COD removal efficiency of 87.45%. The MBBR media provided a large surface area for microbial growth and effectively treated greywater.
Application of chromatography Technique in standardization of herbal drug
Chromatography is defined as a technique of isolation and identification of components or compounds or mixture into individual components by using the stationary phase and mobile phase. Plant materials are separated and purified by using various chromatographic techniques.
PRESENTATION.pptx
Near-infrared spectroscopy is a nondestructive technique that can simultaneously predict concentrations of substrates, products, and biomolecules in bio-process mixtures. It has various applications in bioprocessing including pharmaceutical manufacturing, medical testing, waste management, fermentation, and food analysis. NIR spectroscopy provides real-time process monitoring and control without damaging samples. It has advantages like low cost, minimal sample preparation, and ability to analyze both solid and liquid samples. However, issues like heterogeneous sample distributions and low analyte concentrations can impact accuracy.
Gas chromatography
This document provides an introduction to gas chromatography (GC). GC is a technique used to separate and analyze compounds that can be vaporized without decomposition. It works by carrying the sample compounds through a column via an inert gas mobile phase, where they interact differently with the stationary phase coating the column and elute out at different retention times. The retention time is specific to each compound and depends on its solubility in the mobile phase and affinity for the stationary phase. Various detectors are then used to quantify the separated components. The document discusses the principle, quantitative and qualitative analysis, and various applications of GC in fields like research, forensics, food analysis, and more.
INSTRUMENTAL ANALYSIS INTRODUCTION
This is an introduction to instrumental analysis, mainly hinged on validation, error identification and minimization.
Gas chromatography by Sadoon Ali Zahid
It is a basic presentation about gas chromatography,its components,working principle,procedure,applications and advantages over other.
PRESENTATION(0).pptx
Near-infrared spectroscopy is a nondestructive technique that can simultaneously predict concentrations of substrates, products, and biomass in bioprocesses. It has various applications in bioprocess monitoring and control, including in pharmaceutical manufacturing, medical diagnostics, waste management, fermentation, and food analysis. NIR spectroscopy provides real-time process data without disrupting production or requiring sampling. It has advantages of being low-cost, rapid, and not requiring extensive sample preparation.
BR-70346-Research-Production-Biofuel-BR70346-EN
This document discusses analytical techniques for monitoring various steps in biofuel production workflows, including:
- Chromatography (ion, liquid, gas) and near-infrared spectroscopy can analyze feedstock composition, quantify sugars and lipids, and detect contaminants throughout the biofuel production process.
- Techniques like ion chromatography, liquid chromatography, and gas chromatography with various detectors can characterize raw materials, monitor hydrolysis and fermentation, and test final product quality.
- Near-infrared spectroscopy provides fast analysis of feedstock composition for real-time process monitoring and quality control.
All techniques for food analysis.pdf
This document discusses instrumental techniques used for food analysis. It focuses on chromatography techniques like gas chromatography and liquid chromatography. Gas chromatography separates volatile compounds using a mobile gas phase and stationary liquid or solid phase. It is used with various detectors like FID, ECD, and NPD. Sampling techniques for GC include headspace analysis, thermal desorption, and purge and trap. Liquid chromatography also separates compounds but uses a mobile liquid phase. Hyphenated techniques like GC-MS and LC-MS combine chromatography with spectroscopy for identification. Other techniques discussed are spectroscopy, thermal analysis methods, and selecting the appropriate technique based on criteria like sensitivity, specificity, and nature of the food matrix.
Sampling, extraction, cleanup and estimation of insecticide residue by variou...
This document discusses the process of pesticide residue analysis, which involves 4 main steps: 1) sampling the crop, 2) extracting the pesticide, 3) cleaning up the extract, and 4) analyzing the residue. It provides details on various techniques used for each step, including different extraction, clean-up, and analysis methods like gas chromatography, thin layer chromatography, and spectrophotometry. The goal of pesticide residue analysis is to accurately measure extremely small amounts of pesticides remaining in food after harvesting or storage.
Similar to Presentation1 GLC.pptx (20)
Chromatographic Separation Tools Advantages and Disadvantages
Chromatographic Separation Tools Advantages and Disadvantages
PHARMACEUTICAL APPLICATIONS OF GAS CHROMATOGRAPHY(GC), PHARMACEUTICAL ANALYS...
PHARMACEUTICAL APPLICATIONS OF GAS CHROMATOGRAPHY(GC), PHARMACEUTICAL ANALYS...
375 pesticide method_ Journal of chromatography publication
375 pesticide method_ Journal of chromatography publication
Ion exchange cromatography and affinity chromatography
Ion exchange cromatography and affinity chromatography
IRJET- Characterisation of Grey Water and Treatment using Moving Bed Biof...
IRJET- Characterisation of Grey Water and Treatment using Moving Bed Biof...
Application of chromatography Technique in standardization of herbal drug
Application of chromatography Technique in standardization of herbal drug
Sampling, extraction, cleanup and estimation of insecticide residue by variou...
Sampling, extraction, cleanup and estimation of insecticide residue by variou...
More from amanueltafese2
Chapter_4_Marketing_Mix_Price,_Product,_Promotion_and_Place.pptx
The document discusses various aspects of marketing mix and pricing strategies. It explains the 4Ps of marketing mix - product, price, place and promotion. It also discusses different pricing approaches including cost-based pricing, value-based pricing and competition-based pricing. The document provides examples and details on factors to consider when setting prices, product pricing strategies, and pricing of product mixes.
Part III-Managerial Accounting.pptx
Cost and management accounting provides managers with detailed cost information to control operations and plan for the future. Cost accounting information is used for financial accounting and by managers for decision making. Management accounting provides economic and financial information for internal users. Cost concepts like cost objects, cost pools, and cost drivers are introduced. Costs are classified by elements, functions, traceability, behavior, and controllability. Product costs include direct materials, direct labor, and manufacturing overhead and become inventory until goods are sold. Period costs are expenses of the current period. Job order costing and process costing are introduced as costing systems. Just-in-time processing, activity-based costing, cost-volume-profit analysis, contribution margin,
Part I - Financial Accounting.ppt
This document provides an overview of an accounting and finance course for managers. It has three independent parts: financial accounting and reporting, management and cost accounting, and financial management. The course contents include introductions to accounting processes, management accounting, and financial management. It discusses accounting as an information system and decision making tool for both internal and external users. The key differences between financial and management accounting are explained, with financial accounting following GAAP and providing information to external users, while management accounting focuses on internal reporting and decision making needs.
Chapter 6 - Market Research.pptx
This document discusses marketing research and its process. It defines marketing research as the systematic design, collection, analysis and reporting of data relevant to a specific marketing situation. The marketing research process involves 6 steps: 1) define the problem, 2) develop a research plan, 3) collect information, 4) analyze the information, 5) present findings, and 6) make a decision. It describes various data sources, research approaches, research instruments including different types of questions, and sampling plans that can be used in marketing research.
Chapter 3- Strategic Marketing Planning Edited.pptx
The document provides an overview of strategic marketing planning concepts. It discusses strategic planning processes including defining an organizational mission, setting objectives, and designing business portfolios. Methods for analyzing business portfolios such as the BCG matrix and GE planning grid are also outlined. The document then covers growth strategies like market penetration and product development as well as competitive strategies like market leadership. Finally, it describes key components of a marketing plan such as situation analysis, goals and objectives, marketing strategies, implementation, and evaluation.
Presentation2.pptx
Industrial development involves manufacturing and industrial processes that drive economic growth and development. The document discusses the history and key aspects of industrialization, including its role in transforming economies from agricultural to manufacturing-based. Industrialization is characterized by increasing mechanization, division of labor, and use of technology. It provides benefits like higher incomes, employment, productivity, and living standards. Countries developed different models of industrialization, and it remains an important process for economic development.
Dr. umer.pptx
Phytotoxins are toxic substances produced by plants, microorganisms, or chemical reactions that are poisonous to plant growth. They serve defensive functions for plants and include alkaloids, terpenes, and phenolics. Phytotoxins play important roles in medicine in fields like forensic toxicology and pharmacology. The castor oil plant produces several toxic compounds in its leaves and seeds like ricinoleic acid and the lethal toxin ricin. Ingestion of castor beans can cause severe gastrointestinal effects and be fatal. Symptoms develop within hours of ingestion.
chem 576...1 ppt.ppt
For [Cr(H2O)6]Cl3:
- Primary valence of Cr is 3+
- Secondary valence is satisfied by 6 ligands (H2O)
- So secondary valence is 6
For [Co(NH3)5Cl]Cl2:
- Primary valence of Co is 2+
- Secondary valence is satisfied by 5 ligands (NH3) and 1 ligand (Cl)
- So secondary valence is 6
network design chapter 4(1).pptx
This document discusses designing remote connectivity for employees who work offsite. It describes different types of remote workers and their need for enterprise network connectivity. The enterprise edge, where the enterprise network connects to external networks, requires special design considerations for bandwidth costs, quality of service, security, and remote access. The document also discusses integrating remote sites using various wide area network technologies, virtual private networks, and ensuring redundancy through backup links.
NETWORK DESIGNchapter5 part1.pptx
The document discusses IP addressing hierarchy and route summarization. It explains that hierarchical IP addressing and route summarization reduce routing overhead by allowing more specific routes to be aggregated into less specific summary routes. This hierarchical structure mirrors that used in telephone numbering. The document also discusses factors to consider when designing an IP addressing plan such as using fixed-length versus variable-length subnet masks and the impacts of a poorly designed addressing scheme.
NETWORK DESIGN CHAPTER 1(1).pptx
This document discusses the basics of network design and the benefits of hierarchical network design. It introduces network design goals of scalability, availability, security and manageability. A hierarchical network design groups devices into multiple layered networks of core, distribution and access layers. This approach allows local traffic to remain local, improves traffic filtering and control, and prevents network degradation as more devices are added.
stereochemistry-1.pdf
The document discusses different types of isomers including constitutional isomers, stereoisomers, geometric isomers (cis and trans), enantiomers, and diastereomers. It provides examples of each type of isomer and methods for distinguishing between them, such as assigning R/S configurations using Cahn-Ingold-Prelog rules and distinguishing cis and trans isomers based on whether substituents are on the same or opposite sides. Key topics covered include chiral centers, optical activity, specific rotation, meso compounds, racemic mixtures, and resolution of enantiomers.
aman ppfa - Copy.pptx
This document reviews the effects of soil and water conservation practices on soil loss and nutrient loss in Ethiopia. It discusses how conservation practices like terracing, check dams, crop rotation, and mulching can help minimize erosion and improve soil fertility. Studies have found that these practices significantly reduce soil loss compared to untreated land, helping to rehabilitate degraded land. Soil properties like organic matter, nitrogen, and cation exchange capacity are also improved. Overall, the document concludes that soil and water conservation is important for sustainable agriculture and the environment in Ethiopia.
Abebe project proposal.pptx
This 3-sentence document summary provides the high-level information:
This project proposal examines factors affecting the quality of primary education for poor children in the town of Wolaita Sodo. It aims to identify challenges to delivering quality primary education to underprivileged children in the area. Recommendations will be made to improve education for poor students and help more children in the community to complete primary school.
Organozinc_compound.ppt
This document summarizes key information about organozinc compounds:
1. Organozinc compounds contain carbon-zinc bonds and were among the first organometallic compounds synthesized.
2. They are less reactive than other organometallic reagents like Grignard and organolithium compounds.
3. Organozinc compounds react through reactions like the Reformatsky reaction, Simmons-Smith reaction, Negishi coupling and Fukuyama coupling to form carbon-carbon bonds. They can also be used to introduce functional groups.
Organozinc_compound.ppt
This document summarizes key information about organozinc compounds:
1. Organozinc compounds contain carbon-zinc bonds and were among the first organometallic compounds synthesized.
2. They are less reactive than other organometallic reagents like Grignard and organolithium compounds.
3. Organozinc compounds react through reactions like the Reformatsky reaction, Simmons-Smith reaction, Negishi coupling and Fukuyama coupling to form carbon-carbon bonds. They can also be used to introduce functional groups.
SEMINARPAPER.ppt
This seminar paper reviews the role of science, technology, and innovation in ensuring food security in Ethiopia. It discusses how Ethiopia has struggled with food insecurity and dependence on food aid. It outlines the objectives of reviewing how STI can address the four dimensions of food availability, access, utilization, and stability. The paper then examines various technologies that can improve agricultural productivity, food access through reductions in post-harvest losses, food nutrition through biofortification, and food stability through climate-smart agriculture and early warning systems. It concludes that STI has an important role to play in developing innovative food systems and ensuring food security in Ethiopia.
GIS Lecture_edited.ppt
The document discusses geographic information systems (GIS). It defines GIS as a computer system for collecting, storing, analyzing and displaying spatially-referenced data. The key components of a GIS are hardware, software, data, procedures and users. GIS has functions like inputting, storing, querying, analyzing and displaying spatial data. It can be used for applications in various fields such as agriculture, transportation and environmental planning. The document also covers spatial data models, coordinate systems and map projections used in GIS.
asss,narm.pptx
This document provides an overview of Nitisols, one of the 30 soil groups in the FAO soil classification system. Some key points:
- Nitisols are deep, red, well-drained tropical soils with more than 30% clay content and a blocky structure. They are found in tropical and subtropical regions like Africa and Asia.
- They have a clayey 'nitic' subsurface horizon formed from weathered intermediate to basic parent rock. Common clay minerals include kaolinite and halloysite.
- Though low in available phosphorus and bases, Nitisols have high agricultural potential due to their depth, structure, drainage, and moisture-holding capacity. They support crops and
More from amanueltafese2 (20)
Chapter_4_Marketing_Mix_Price,_Product,_Promotion_and_Place.pptx
Chapter_4_Marketing_Mix_Price,_Product,_Promotion_and_Place.pptx
Chapter 3- Strategic Marketing Planning Edited.pptx
Chapter 3- Strategic Marketing Planning Edited.pptx
Recently uploaded
South African Journal of Science: Writing with integrity workshop (2024)
South African Journal of Science: Writing with integrity workshop (2024)Academy of Science of South Africa
A workshop hosted by the South African Journal of Science aimed at postgraduate students and early career researchers with little or no experience in writing and publishing journal articles.clinical examination of hip joint (1).pdf
described clinical examination all orthopeadic conditions .
Introduction to AI for Nonprofits with Tapp Network
Dive into the world of AI! Experts Jon Hill and Tareq Monaur will guide you through AI's role in enhancing nonprofit websites and basic marketing strategies, making it easy to understand and apply.
PCOS corelations and management through Ayurveda.
This presentation includes basic of PCOS their pathology and treatment and also Ayurveda correlation of PCOS and Ayurvedic line of treatment mentioned in classics.
CACJapan - GROUP Presentation 1- Wk 4.pdf
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
The History of Stoke Newington Street Names
Presented at the Stoke Newington Literary Festival on 9th June 2024
www.StokeNewingtonHistory.com
Your Skill Boost Masterclass: Strategies for Effective Upskilling
Your Skill Boost Masterclass: Strategies for Effective UpskillingExcellence Foundation for South Sudan
Strategies for Effective Upskilling is a presentation by Chinwendu Peace in a Your Skill Boost Masterclass organisation by the Excellence Foundation for South Sudan on 08th and 09th June 2024 from 1 PM to 3 PM on each day.How to Add Chatter in the odoo 17 ERP Module
In Odoo, the chatter is like a chat tool that helps you work together on records. You can leave notes and track things, making it easier to talk with your team and partners. Inside chatter, all communication history, activity, and changes will be displayed.
DRUGS AND ITS classification slide share
Any substance (other than food) that is used to prevent, diagnose, treat, or relieve symptoms of a
disease or abnormal condition
ANATOMY AND BIOMECHANICS OF HIP JOINT.pdf
it describes the bony anatomy including the femoral head , acetabulum, labrum . also discusses the capsule , ligaments . muscle that act on the hip joint and the range of motion are outlined. factors affecting hip joint stability and weight transmission through the joint are summarized.
How to Build a Module in Odoo 17 Using the Scaffold Method
Odoo provides an option for creating a module by using a single line command. By using this command the user can make a whole structure of a module. It is very easy for a beginner to make a module. There is no need to make each file manually. This slide will show how to create a module using the scaffold method.
Recently uploaded (20)
South African Journal of Science: Writing with integrity workshop (2024)
South African Journal of Science: Writing with integrity workshop (2024)
Introduction to AI for Nonprofits with Tapp Network
Introduction to AI for Nonprofits with Tapp Network
Digital Artefact 1 - Tiny Home Environmental Design
Digital Artefact 1 - Tiny Home Environmental Design
Group Presentation 2 Economics.Ariana Buscigliopptx
Group Presentation 2 Economics.Ariana Buscigliopptx
Your Skill Boost Masterclass: Strategies for Effective Upskilling
Your Skill Boost Masterclass: Strategies for Effective Upskilling
Pride Month Slides 2024 David Douglas School District
Pride Month Slides 2024 David Douglas School District
Liberal Approach to the Study of Indian Politics.pdf
Liberal Approach to the Study of Indian Politics.pdf
How to Build a Module in Odoo 17 Using the Scaffold Method
How to Build a Module in Odoo 17 Using the Scaffold Method
Presentation1 GLC.pptx
- 2. INTRODUCTION Mycotoxins are fungal toxic metabolites which naturally contaminate food and feed
- 3. Gas-liquid chromatography • Gas-liquid chromatography (GIC) is one of most effective and widely applied methods for the separation, identification and quantitative analysis of complex multi-component mixtures. •
- 4. Advantage It has high separation efficiency, considerably exceeding the possibilities of liquid chromatography (thin-layer chromatography (TIC), high-resolution liquid chromatography (HRIC)); good reproducibility of GIC chromatography parameters, facilitating identification and acquisition of precise quantitative results; high sensitivity; universality of the applied detection techniques, making it possible to identify with a low detection limit all classes of organic compounds; lasting quality of analytic columns (compared to that of BRIG) used in GIC for separation (up to two years of continuous work)
- 5. Dis Advantage Very minute amounts of a substance can be measured, but it is often required that the sample must be measured in comparison to a sample containing the pure, suspected substance known as a reference standard.