Quantification In Lc And Gc

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Quantification In Lc And Gc

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Author : Stavros Kromidas
language : en
Publisher: John Wiley & Sons
Release Date : 2009-10-12

Quantification In Lc And Gc written by Stavros Kromidas and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-10-12 with Science categories.

Closing a gap in the current literature by addressing the evaluation and quality assessment of raw data, this practice-oriented guide is clearly divided into three parts. The first describes basic considerations of chromatographic data quality, common errors and potential pitfalls in reading out and quantifying the data. Part two systematically covers the most important chromatographic methods as well as the specific requirements for obtaining good chromatographic data. The final part looks at data quality from the perspective of those regulatory authorities demanding certain standards in data quality, describing in detail best practices. Written with the practitioner in mind, the text not only teaches the mathematical basics but also provides invaluable advice.

Gas Chromatography And Mass Spectrometry A Practical Guide

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Author : O. David Sparkman
language : en
Publisher: Academic Press
Release Date : 2011-05-17

Gas Chromatography And Mass Spectrometry A Practical Guide written by O. David Sparkman and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-05-17 with Science categories.

The second edition of Gas Chromatography and Mass Spectrometry: A Practical Guide follows the highly successful first edition by F.G. Kitson, B.S. Larsen, and C.N. McEwen (1996), which was designed as an indispensible resource for GC/MS practitioners regardless of whether they are a novice or well experienced. The Fundamentals section has been extensively reworked from the original edition to give more depth of an understanding of the techniques and science involved with GC/MS. Even with this expansion, the original brevity and simple didactic style has been retained. Information on chromatographic peak deconvolution has been added along with a more in-depth understanding of the use of mass spectral databases in the identification of unknowns. Since the last edition, a number of advances in GC inlet systems and sample introduction techniques have occurred, and they are included in the new edition. Other updates include a discussion on fast GC and options for combining GC detectors with mass spectrometry. The section regarding GC Conditions, Derivatization, and Mass Spectral Interpretation of Specific Compound Types has the same number of compound types as the original edition, but the information in each section has been expanded to not only explain some of the spectra but to also explain why certain fragmentations take place. The number of Appendices has been increased from 12 to 17. The Appendix on Atomic Masses and Isotope Abundances has been expanded to provide tools to aid in determination of elemental composition from isotope peak intensity ratios. An appendix with examples on "Steps to follow in the determination of elemental compositions based on isotope peak intensities" has been added. Appendices on whether to use GC/MS or LC/MS, third-party software for use in data analysis, list of information required in reporting GC/MS data, X+1 and X+2 peak relative intensities based on the number of atoms of carbon in an ion, and list of available EI mass spectral databases have been added. Others such as the ones on derivatization, isotope peak patterns for ions with Cl and/or Br, terms used in GC and in mass spectrometry, and tips on setting up, maintaining and troubleshooting a GC/MS system have all been expanded and updated. Covers the practical instruction necessary for successful operation of GC/MS equipment Reviews the latest advances in instrumentation, ionization methods, and quantitation Includes troubleshooting techniques and a variety of additional information useful for the GC/MS practitioner A true benchtop reference A guide to a basic understanding of the components of a Gas Chromatograph-Mass Spectrometer (GC-MS) Quick References to data interpretation Ready source for information on new analyses

Comprehensive Two Dimensional Gas Chromatography

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Author : Lourdes Ramos
language : en
Publisher: Elsevier
Release Date : 2009-07-22

Comprehensive Two Dimensional Gas Chromatography written by Lourdes Ramos and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-07-22 with Science categories.

The book reviews the basic concepts and highlights the most relevant advances and developments that have taken place in the field of comprehensive two dimensional gas chromatography (GC x GC) since its introduction in 1991. The several instrumental and technical approaches assayed and developed during these seventeen years and that have contributed to the development of this powerful separation technique and to its increasing application in many areas is explained and comprehensively illustrated through a number of chapters devoted these specific topics. More specialized aspects of the technique, including theoretical aspects, modelization of the chromatographic process, software developments, and alternative couplings is also covered. Finally, special attention is paid to data treatment, for both qualitative and quantitative analysis. This book will be a practical resource that will explain from basic to specialized concepts of GC x GC and will show the current state-of-the-art and discuss future trends of this technique. Outlines basic concepts and principles of GCxGC technique for non-specialists to apply the technique to their research Provides detailed descriptions of recent technical advances and serves as an instructional guide in latest applications in GCxGC Sets the scene for possible future development and alternative new applications of technique

Lc Gc

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Author :
language : en
Publisher:
Release Date : 1988

Lc Gc written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with Gas chromatography categories.

Basic Gas Chromatography Mass Spectrometry

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Author : F.W. Karasek
language : en
Publisher: Elsevier
Release Date : 2012-12-02

Basic Gas Chromatography Mass Spectrometry written by F.W. Karasek and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-02 with Science categories.

The book begins by covering the basic principles of both gas chromatography (GC) and mass spectrometry (MS) to the extent necessary to understand and deal with the data generated in a GC-MS analysis. The focus then turns to the particular requirements created by a direct combination of these two techniques into a single instrumentation system. The data generated and their use are covered in detail. The role of the computer and its specific software receives special attention, especially in the matter of compound identification via mass spectral search techniques. GC-MS-computer instrumentation has reached such a plateau of excellence today that the present commercial systems will not be obsolete for a long time to come. Therefore, a detailed description of these systems is not only informative but is also pertinent to the subject matter of this book. Finally, representative applications and results obtained with GC-MS-computer techniques are presented and chosen in such a way as to permit extrapolation of specific applications to similar problems encountered by the reader. To aid the reader in mastering the subject matter and increase understanding, interpretation problems and suggested readings are included. The format is instructional, informative and application-oriented with material presented in such a way as to be useful to a broad spectrum of people.The book serves as a text in its own right.The software package Gas Chromatography-Mass Spectrometry: A Knowledge Base, by F.A. Settle, Jr. and M.A. Pleva provides rapid access to a wealth of current information in the GC-MS field. Its three diskettes (51/4 inch) allow the user three ways to access: the index mode, the tree mode and a keyword search mode. The package may be purchased separately and is available for the IBM-PC and compatibles.The software provides a valuable supplement to the book.

Applications Of Lc Ms In Toxicology

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Author : Aldo Polettini
language : en
Publisher: Pharmaceutical Press
Release Date : 2006

Applications Of Lc Ms In Toxicology written by Aldo Polettini and has been published by Pharmaceutical Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Analytical toxicology categories.

Analytical toxicologists are involved in the analysis of drugs and poisons in biological samples in different environments. Many scientists in the field of analytical toxicology have adopted LC-MS in their daily work, and this is illustrated by the increasing numbers of research papers published and presented at relevant conferences.

Chromatographic Mass Spectrometric Food Analysis For Trace Determination Of Pesticide Residues

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Author : A.R. Fernandez Alba
language : en
Publisher: Elsevier
Release Date : 2004-12-11

Chromatographic Mass Spectrometric Food Analysis For Trace Determination Of Pesticide Residues written by A.R. Fernandez Alba and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-12-11 with Science categories.

The trace determination of pesticides continues to be a topic for analytical chemists working in research centres, government and universities. With four chapters devoted to chromatography-mass spectrometry methods, readers are able to understand the analytical basis, technical characteristics and possibilities to evaluate pesticides in food by gas chromatography (GC) and liquid chromatography (LC) mass spectrometry. The book also provides a well-defined and critical compilation of the sample treatment and clean-up procedures, as well as injection techniques applied in GC and LC food analysis. Finally the book deals with aspects related to analytical quality control requirements for pesticide residues, in addition to pesticide regulation aspects. * Contains specific chapters devoted to chromatography-mass spectrometry methods * Provides a well-defined and critical compilation of the sample treatment and clean-up procedures * Contains aspects related to analytical quality control requirements for pesticide residues

Organic Trace Analysis By Liquid Chromatography

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Author : James Lawrence
language : en
Publisher: Elsevier
Release Date : 2012-12-02

Organic Trace Analysis By Liquid Chromatography written by James Lawrence and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-02 with Science categories.

Organic Trace Analysis by Liquid Chromatography focuses on high-performance liquid chromatography in the field of formulations analysis, which includes quality control of pharmaceutical preparations, pesticide formulations, cosmetics, and food colors. This book explores the application of liquid chromatography to trace analysis. Organized into 10 chapters, this book starts with an overview of the special requirements of liquid chromatography for trace analysis. This text then compares the approach to gas chromatography and formulations analysis, noting the significant difference. Other chapters consider the liquid chromatography equipment and examine the best types and conditions of instrumentation suitable for trace analysis. This book discusses as well the chromatography theory and includes descriptive accounts of the principles of the different forms of chromatography. The final chapter describes the typical approaches that are used for trace analysis. This book is a valuable resource for analysts engaged in the determination of trace organics in many various substrates.

Automated Sample Preparation

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Author : Hans-Joachim Hubschmann
language : en
Publisher: John Wiley & Sons
Release Date : 2022-02-22

Automated Sample Preparation written by Hans-Joachim Hubschmann and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-02-22 with Science categories.

An essential guide to the proven automated sample preparation process While the measurement step in sample preparation is automated, the sample handling step is manual and all too often open to risk and errors. The manual process is of concern for accessing data quality as well as producing limited reproducibility and comparability. Handbook of Automated Sample Preparation for CG-MS and LC-MS explores the advantages of implementing automated sample preparation during the handling phase for CG-MS and LC-MS. The author, a noted expert on the topic, includes information on the proven workflows that can be put in place for many routine and regulated analytical methods. This book offers a guide to automated workflows for both on-line and off-line sample preparation. This process has proven to deliver consistent and comparable data quality, increased sample amounts, and improved cost efficiency. In addition, the process follows Standard Operation Procedures that are essential for audited laboratories. This important book: Provides the information and tools needed for the implementation of instrumental sample preparation workflows Offers proven and detailed examples that can be adapted in analytical laboratories Shows how automated sample preparation can reduce cost per sample, increase sample amounts, and produce faster results Includes illustrative examples from various fields such as chemistry to food safety and pharmaceuticals Written for personnel in analytical industry, pharmaceutical, and medical laboratories, Handbook of Automated Sample Preparation for CG-MS and LC-MS offers the much-needed tools for implementing the automated sample preparation for analytical laboratories.

Mass Spectrometry For Food Analysis

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Author : Hector Koolen
language : en
Publisher: Springer Nature
Release Date : 2022-06-25

Mass Spectrometry For Food Analysis written by Hector Koolen and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-06-25 with Technology & Engineering categories.

This volume details protocols on mass spectrometry and associated techniques. Chapters guide readers through micro- and macronutrients analysis, mass spectrometry-related methodologies, direct insertion, matrix-assisted laser desorption ionization (MALDI), gas chromatography (uni- and bi-dimensional), liquid chromatography, plasma mass spectrometry (ICP-MS), and analyses in food samples. Authoritative and cutting-edge, Mass Spectrometry for Food Analysis aims to provide comprehensive and updated state-of-art methodologies and models for food analysis.