Download or read book Advanced Techniques in Gas Chromatography Mass Spectrometry GC MS MS and GC TOF MS for Environmental Chemistry written by and published by Newnes. This book was released on 2013-09-26 with total page 525 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gas chromatography mass spectrometry (GC-MS) has been the technique of choice of analytical scientists for many years. The latest developments in instrumentation, including tandem mass spectrometry (MS-MS) and time-of-flight (TOF) detectors, have opened up and broadened the scope of environmental analytical chemistry. This book summarizes the major advances and relevant applications of GC-MS techniques over the last 10 years, with chapters by leading authors in the field of environmental chemistry. The authors are drawn from academia, industry and government. The book is organized in three main parts. Part I covers applications of basic GC-MS to solve environmental-related problems. Part II focuses on GC-MS-MS instrumentation for the analyses of a broad range of analysis in environmental samples (pesticides, persistent organic pollutants, endocrine disruptors, etc.). Part III covers the use of more advanced GC-MS techniques using low- and high-resolution mass spectrometry for many applications related to the environment, food and industry. - Summarizes the major advances of GC-MS techniques in the last decade - Presents relevant applications of GC-MS techniques - Covers academic, industrial and governmental sectors

Download or read book Interpretation of MS MS Mass Spectra of Drugs and Pesticides written by Wilfried M. A. Niessen and published by John Wiley & Sons. This book was released on 2017-01-30 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides comprehensive coverage of the interpretation of LC–MS–MS mass spectra of 1300 drugs and pesticides Provides a general discussion on the fragmentation of even-electron ions (protonated and deprotonated molecules) in both positive-ion and negative-ion modes This is the reference book for the interpretation of MS–MS mass spectra of small organic molecules Covers related therapeutic classes of compounds such as drugs for cardiovascular diseases, psychotropic compounds, drugs of abuse and designer drugs, antimicrobials, among many others Covers general fragmentation rule as well as specific fragmentation pathways for many chemical functional groups Gives an introduction to MS technology, mass spectral terminology, information contained in mass spectra, and to the identification strategies used for different types of unknowns

Download or read book Food Safety Assessment Of Pesticide Residues written by Arpad Ambrus and published by World Scientific. This book was released on 2017-01-05 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pesticides are now accepted as an integral part of modern agricultural production. This book provides analysis of the steps taken by national and international bodies working towards a cohesive global strategy for evaluating the safety of residues in food that result from approved pesticide uses. Also described is the role of the UN Food and Agriculture Organization (FAO), World Health Organization (WHO) and Codex Alimentarius in developing standards that protect the health of the consumers and ensure fair practices in the food trade. It goes on to look at the promotion of good agricultural practice in the use of pesticides and the need for control in their practical use. These include sampling, testing the compliance of marketed products against legal limits and verifying the effectiveness of the safety-based regulatory measures. This is a specialist book for those looking to go into the field of international food safety, for students and lecturers studying the topic, for policy makers working on public health and agricultural issues, and personnel responsible for taking samples and performing the analysis of pesticide formulations and residues.

Download or read book Handbook of GC MS written by Hans-Joachim Hubschmann and published by John Wiley & Sons. This book was released on 2015-07-27 with total page 884 pages. Available in PDF, EPUB and Kindle. Book excerpt: The only comprehensive reference on this popular and rapidly developing technique provides a detailed overview, ranging from fundamentals to applications, including a section on the evaluation of GC-MS analyses. As such, it covers all aspects, including the theory and principles, as well as a broad range of real-life examples taken from laboratories in environmental, food, pharmaceutical and clinical analysis. It also features a glossary of approximately 300 terms and a substance index that facilitates finding a specific application. The first two editions were very well received, making this handbook a must-have in all analytical laboratories using GC-MS.

Download or read book Automated Sample Preparation written by Hans-Joachim Hubschmann and published by John Wiley & Sons. This book was released on 2022-02-22 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Gas Chromatography and Mass Spectrometry A Practical Guide written by O. David Sparkman and published by Academic Press. This book was released on 2011-05-17 with total page 633 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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

Download or read book Gas Chromatography Mass Spectrometry with Cold EI Leading the Way to the Future of GC MS written by Aviv Amirav and published by Scientific Research Publishing, Inc. USA. This book was released on 2021-08-30 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gas chromatography-mass spectrometry (GC-MS) with supersonic molecular beams (SMB) (also named GC-MS with Cold EI) is based on GC and MS interface with a SMB and on the electron ionization (EI) of vibrationally cold analytes in the SMB (hence the name Cold EI) in a contact-free fly-through ion source. Cold EI improves all the central GC-MS performance aspects and brings a broad range of important benefits thereby leading the way to the future of GC-MS. Cold EI provides enhanced molecular ions combined with effective library-basedsample identification. Sample identification is further improved by the use of powerful TAMI software that is based on isotope abundance analysis and improved quadrupole mass accuracy for the provision of the sample elemental formula from its molecular ion group of isotopologues.

Download or read book Modern Sample Preparation for Chromatography written by Serban C. Moldoveanu and published by Elsevier. This book was released on 2021-02-24 with total page 698 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modern Sample Preparation for Chromatography, Second Edition explains the principles of sample preparation for chromatographic analysis. A variety of procedures are applied to make real-world samples amenable for chromatographic analysis and to improve results. This book's authors discuss each procedure's advantages, disadvantages and their applicability to different types of samples, along with their fit for different types of chromatographic analysis. The book contains numerous literature references and examples of sample preparation for different matrices and new sections on green approaches in sample preparation, progress in automation of sample preparation, non-conventional solvents for LLE (ionic liquids, deep eutectic mixtures, and others), and more. - Presents numerous techniques applied for sample preparation for chromatographic analysis - Provides an up-to-date source of information regarding the progress made in sample preparation for chromatography - Describes examples for specific types of matrices, providing a guide for choosing the appropriate sample preparation method for a given analysis

Download or read book Liquid Chromatography Mass Spectrometry MS MS and Time of Flight MS written by Imma Ferrer and published by American Chemical Society. This book was released on 2003-08-14 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume explores state-of-the-art mass spectrometric techniques. It focuses on liquid chromatography/mass spectrometry/mass spectrometry and time-of-flight/mass spectrometry to determine emerging contaminants, such as pharmaceuticals, hormones, pesticides, surfactants and unknown natural products.

Download or read book Manual of Pesticide Residue Analysis written by Deutsche Forschungsgemeinschaft. Kommission für Pflanzenschutz-, Pflanzenbehandlungs- und Vorratsschutzmittel. Arbeitsgruppe "Analytik." and published by Wiley-VCH. This book was released on 1987 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection of up-to-date methods for analyzing pesticide residues represents those proven methods that are of most value to the analyst. The methods chosen demonstrate a particularly high standard of reliability and have all been validated by at least one other specially qualified laboratory. They are also presented in such detailed and readily understandable form that analysts using them cannot possibly be left in doubt about how to proceed. Each of the single methods specifies the substrates to which it is suited and on which it has been validated, among them food crops, stored commodities, processed food of vegetable and animal origin, feedstuffs, forage and fodder crops, soil, and water. Both Volumes arrange the compound-specific methods in the alphabetical order of the compound names. They also contain indexes to provide quick access to the desired method. The single methods each contain the chemical name and the structural formula of the respective compound. Multiple methods are preceded by a table in which chemical names and structural formulae are presented jointly for all compounds.

Download or read book Chemical and Physical Behavior of Human Hair written by Clarence R. Robbins and published by Springer Science & Business Media. This book was released on 2006-05-26 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: Human hair is the subject of a wide range of scientific investigations. Its chemical and physical properties are of importance to the cosmetics industry, forensic scientists, and to biomedical researchers. This updated and enlarged fourth edition continues the tradition of its predecessor as being the definitive monograph on the subject. It now contains new information on various topics including: chemical hair damage, the cause of dandruff, skin and eye irritation, hair straightening, and others. Chemical and Physical Behavior of Human Hair is a teaching guide and reference volume for cosmetic chemists and other scientists in the hair products industry, academic researchers studying hair and hair growth, textile scientists, and forensic specialists.

Download or read book Alluvial Aquifer Processes written by Milan Dimkic and published by IWA Publishing. This book was released on 2021-03-15 with total page 625 pages. Available in PDF, EPUB and Kindle. Book excerpt: Alluvial Aquifer Processes

Download or read book Principles and Practices of Method Validation written by A Fajgelj and published by Royal Society of Chemistry. This book was released on 2007-10-31 with total page 317 pages. Available in PDF, EPUB and Kindle. Book excerpt: Principles and Practices of Method Validation is an overview of the most recent approaches used for method validation in cases when a large number of analytes are determined from a single aliquot and where a large number of samples are to be analysed. Much of the content relates to the validation of new methods for pesticide residue analysis in foodstuffs and water but the principles can be applied to other similar fields of analysis. Different chromatographic methods are discussed, including estimation of various effects, eg. matrix-induced effects and the influence of the equipment set-up. The methods used for routine purposes and the validation of analytical data in the research and development environment are documented. The legislation covering the EU-Guidance on residue analytical methods, an extensive review of the existing in-house method validation documentation and guidelines for single-laboratory validation of analytical methods for trace-level concentrations of organic chemicals are also included. With contributions from experts in the field, any practising analyst dealing with method validation will find the examples presented in this book a useful source of technical information.

Download or read book Design of Experiments written by R. O. Kuehl and published by Duxbury Resource Center. This book was released on 2000 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "In this Second Edition of Design of Experiments: Statistical Principles of Research Design and Analysis, Bob Kuehl continues to treat research design as a very practical subject. He emphasizes the importance of developing a treatment design based on research hypothesis as an initial step and then developing an experimental or observational study design that facilitates efficient data collection. With the book's wide array of examples from actual studies from many scientific and technological fields, Kuehl constantly reinforces the research design process."--Back cover.

Download or read book Pesticide Toxicology written by Eugenia Gallardo and published by . This book was released on 2022 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This detailed volume explores practical procedures on the identification and quantification of pesticides in a variety of samples. Chapters guide the reader through methods and protocols for the extraction of pesticides from biological and non-biological samples, pitfalls in dosing techniques and structures identification, and also provide an overview of the problems that these pesticides cause in human populations. As part of the Methods in Pharmacology and Toxicology series, chapters include introductions to their respective topics, lists of reagents and materials, step-by-step guides and reproducible lab protocols, as well as valuable tips on addressing common problems and avoiding known pitfalls. Authoritative and practical, Pesticide Toxicology is an ideal reference for academia, analysts, toxicologists, environmentalists, and health and industry professionals aiming to understand the associated risks and to limit the use of these substances and minimize their potential damage to human health and the environment.

Download or read book Analysis of Pesticide in Tea written by Guo-Fang Pang and published by Elsevier. This book was released on 2018-08-20 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analysis of Pesticide in Tea: Chromatography-Mass Spectrometry Methodology is a comprehensive book, providing serial, rapid, high-throughput analytical methods for determining more than 600 pesticides in tea. There are increasing numbers of strict limit standards for pesticide residues in edible agricultural products in countries all over the world. The threshold for pesticide residues in tea is high for international trade. At present, 17 countries and international organizations have stipulated MRL levels for over 800 pesticide residues in tea. All methods described in this book are validated by an independent, U.S.-based organization (AOAC International), and all indexes have satisfied AOAC International's criteria. China has a history of 5000 years in growing tea and is a large tea producer with 80 million people involved in tea growing. China exports tea to over 100 countries worldwide, enjoying a high reputation for quality and variety.

Download or read book Chromatographic Mass Spectrometric Food Analysis for Trace Determination of Pesticide Residues written by A.R. Fernandez Alba and published by Elsevier. This book was released on 2004-12-11 with total page 509 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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