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Application of High Performance Liquid Chromatography/mass Spectrometry to Environmental Analysis

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Author :
Release : 1989
Genre : High performance liquid chromatography
Kind : eBook
Book Rating : /5 ( reviews)

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Book Synopsis Application of High Performance Liquid Chromatography/mass Spectrometry to Environmental Analysis by : Leon D. Betowski

Download or read book Application of High Performance Liquid Chromatography/mass Spectrometry to Environmental Analysis written by Leon D. Betowski. This book was released on 1989. Available in PDF, EPUB and Kindle. Book excerpt: High performance liquid chromatography (HPLC) coupled with mass spectrometry (MS) is described for the analysis of samples for environmental pollutants. During the course of this work different techniques were used to increase both the sensitivity and specificity of HPLC/MS. These included the utilization of two different interfaces for the mass spectrometer - the thermospray and the particle beam systems. Refinements to the thermospray system were made with the use of a wire-repeller to enhance sensitivity and also to increase the structural information obtained from mass spectra. The operation of the instrument in the discharge negative ionization mode further increased the specificity of these techniques as did the use of a triple quadrupole mass spectrometer in the HPLC/MS system. Two different sets of compounds were used in this study. Organic dyes were used to test the improvements in the system. Since work was performed with dyes previously and since dye compounds encompass a variety of structural functionalities, the dyes made good test compounds. Chlorinated herbicides were studied in an effort to analyze for these compounds directly without having to prepare derivatives before separation.

Fast Liquid Chromatography-Mass Spectrometry Methods in Food and Environmental Analysis

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Author :
Release : 2015
Genre : Science
Kind : eBook
Book Rating : 933/5 ( reviews)

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Book Synopsis Fast Liquid Chromatography-Mass Spectrometry Methods in Food and Environmental Analysis by : Oscar Núñez

Download or read book Fast Liquid Chromatography-Mass Spectrometry Methods in Food and Environmental Analysis written by Oscar Núñez. This book was released on 2015. Available in PDF, EPUB and Kindle. Book excerpt: There is a growing need for high-throughput separations in food and environmental research that are able to cope with the analysis of a large number of compounds in very complex matrices. Laboratories worldwide are now demanding fast and efficient analytical procedures with enough sensitivity, robustness, effectiveness and high resolution to be able to perform both qualitative and quantitative analysis while at the same time achieving cost-effective methodologies with reduced analysis times. Whereas the most common approach for solving many analytical problems has often been high-performance liquid chromatography (HPLC), the recent use of fast or ultra-fast chromatographic methods for environmental and food analysis has increased the overall sample throughput and laboratory efficiency without loss (and even with an improvement) in the resolution obtained by conventional HPLC systems.This book brings together researchers at the top of their field from across the world to discuss and analyze recent advances in fast liquid chromatography–mass spectrometry (LC–MS) methods for food and environmental analysis. It focuses on the development of the analytical method: sample preparation, chromatographic separation, mass spectrometry and, finally, confirmation and quantification aspects. These topics are addressed in three main parts. First, the most novel approaches to achieve fast and ultra-fast methods as well as the use of alternative and complementary stationary phases are described. In the second part, advances in fast LC–MS methods are addressed, focusing on novel treatment procedures coupled with LC–MS, new ionization sources, high-resolution mass spectrometry, and the problematic confirmation and quantification aspects in mass spectrometry. Finally, the third part is devoted to relevant LC–MS applications in food and environmental analysis and addresses the analysis of pesticides, mycotoxins, food packaging contaminants, perfluorinated compounds and polyphenolic compounds.This book brings together researchers working at the top of the field at universities and in industry from across the world to present the state-of-the-art in current research on food and environmental analysis. The scope of the book is intentionally broad and is aimed at worldwide analytical laboratories working in food and environmental applications as well as researchers in universities worldwide.

Fast Liquid Chromatography-mass Spectrometry Methods in Food and Environmental Analysis

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Author :
Release : 2014
Genre : TECHNOLOGY & ENGINEERING
Kind : eBook
Book Rating : 618/5 ( reviews)

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Book Synopsis Fast Liquid Chromatography-mass Spectrometry Methods in Food and Environmental Analysis by : Oscar Núñez Burcio

Download or read book Fast Liquid Chromatography-mass Spectrometry Methods in Food and Environmental Analysis written by Oscar Núñez Burcio. This book was released on 2014. Available in PDF, EPUB and Kindle. Book excerpt:

Fast Liquid Chromatography-mass Spectrometry Methods In Food And Environmental Analysis

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Author :
Release : 2015-02-03
Genre : Science
Kind : eBook
Book Rating : 950/5 ( reviews)

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Book Synopsis Fast Liquid Chromatography-mass Spectrometry Methods In Food And Environmental Analysis by : Oscar Nunez

Download or read book Fast Liquid Chromatography-mass Spectrometry Methods In Food And Environmental Analysis written by Oscar Nunez. This book was released on 2015-02-03. Available in PDF, EPUB and Kindle. Book excerpt: There is a growing need for high-throughput separations in food and environmental research that are able to cope with the analysis of a large number of compounds in very complex matrices. Whereas the most common approach for solving many analytical problems has often been high-performance liquid chromatography (HPLC), the recent use of fast or ultra-fast chromatographic methods for environmental and food analysis has increased the overall sample throughput and laboratory efficiency without loss (and even with an improvement) in the resolution obtained by conventional HPLC systems.This book brings together researchers at the top of their field from across the world to discuss and analyze recent advances in fast liquid chromatography-mass spectrometry (LC-MS) methods in food and environmental analysis. First, the most novel approaches to achieve fast and ultra-fast methods as well as the use of alternative and complementary stationary phases are described. Then, recent advances in fast LC-MS methods are addressed, focusing on novel treatment procedures coupled with LC-MS, new ionization sources, high-resolution mass spectrometry, and the problematic confirmation and quantification aspects in mass spectrometry. Finally, relevant LC-MS applications in food and environmental analysis such as the analysis of pesticides, mycotoxins, food packaging contaminants, perfluorinated compounds and polyphenolic compounds are described.The scope of the book is intentionally broad and is aimed at worldwide analytical laboratories working in food and environmental applications as well as researchers in universities worldwide.

Comprehensive Environmental Mass Spectrometry

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Author :
Release : 2012
Genre : Science
Kind : eBook
Book Rating : 121/5 ( reviews)

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Book Synopsis Comprehensive Environmental Mass Spectrometry by : Albert Lebedev

Download or read book Comprehensive Environmental Mass Spectrometry written by Albert Lebedev. This book was released on 2012. Available in PDF, EPUB and Kindle. Book excerpt: "In full colour throughout, this book describes the power of mass spectrometry in resolving environmental issues, demonstrating how real-world complex problems can be solved in a simple and elegant way."--Worldcat.

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