Introduction To Gc Ms Coupling

Author: Stéphane Bouchonnet
Publisher: CRC Press
ISBN: 1466572523
Size: 61.45 MB
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Although GC-MS (gas chromatography–mass spectrometry) finds applications in fields as diverse as the food processing industry, medicine, pharmacology, and environmental analysis, the few works that are dedicated to this use of mass spectrometry are generally highly complex and theoretical. Emphasizing the practical aspects of GC-MS, without neglecting the fundamental theory, Introduction to GC-MS Coupling addresses both novice and experienced users of this technique. It presents GC-MS in a clear, instructive way and proposes solutions for the difficulties classically encountered by users. The book begins with the core principles of gas chromatography and its specific uses with MS detectors. It discusses generalities of mass spectrometry, including the various types of MS detectors and insight into the vacuum necessary for efficient operation. Chapters cover the types of analyzers used in GC-MS and their functioning principles, with a focus on the commonly used quadrupolar analyzers, as well as the implementation, advantages, and limits of various modes of acquisition in GC-MS. The text also compares performance and limitations of quadrupolar analyzers. The author includes a full chapter on quantification using GC-MS, a topic that can be puzzling for many chemists. Encouraging a critical approach to databases, he compares laboratory-made and commercial mass spectra databases, and describes a database research algorithm. The final chapter examines mass spectra interpretation, covering chemistry concepts such as inductive and mesomeric effects required to understand dissociation pathways, and presents a global strategy for mass spectra interpretation.

Handbook Of Gc Ms

Author: Hans-Joachim Hübschmann
Publisher: John Wiley & Sons
ISBN: 352731427X
Size: 65.69 MB
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The most important advantage [of this text] is that it has not only been written for the practitioner, but also the analyst who wishes to familiarize himself with any or all the aspects of GC/MS' - AFS - Advances In Food Sciences. This is an updated edition of its bestselling predecessor, Handbook of GC/MS: Fundamentals and Applications that offers broad coverage of the subject, from sample preparation to the evaluation of MS-Data. This edition boasts several new chapters, including Automated Solvent Extraction (ASE), Hyphenation with Isotope Ratio MS, and the TOF-technique

Advanced Techniques In Gas Chromatography Mass Spectrometry Gc Ms Ms And Gc Tof Ms For Environmental Chemistry

Author:
Publisher: Newnes
ISBN: 0444626247
Size: 33.37 MB
Format: PDF, Docs
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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

Organic Mass Spectrometry In Art And Archaeology

Author: Prof Maria Perla Colombini
Publisher: John Wiley & Sons
ISBN: 0470741929
Size: 33.47 MB
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Offers an overview of the analysis of art and archaeological materials using techniques based on mass spectrometry Illustrates basic principles, procedures and applications of mass spectrometric techniques. Fills a gap in the field of application on destructive methods in the analysis of museum objects Edited by a world-wide respected specialists with extensive experience of the GC/MS analysis of art objects Such a handbook has been long-awaited by scientists, restorers and other experts in the analysis of art objects

Plant Metabolomics

Author: Xiaoquan Qi
Publisher: Springer
ISBN: 9401792917
Size: 35.56 MB
Format: PDF, ePub
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This book introduces plant metabolomics, an experimental approach that is important in both functional genomics and systems biology. It can be argued that metabolite data is most closely linked to phenotypes and that changes in metabolite content or metabolic networks can therefore indicate gene function more directly than mRNA transcript or protein based-approaches. Additionally, the identification of metabolic markers has important applications in plant breeding. The book, written by researchers who are active in plant metabolomics in China, not only introduces the fundamental concepts and the latest methodological advances in the field of plant metabolomics, but also details new studies from the respective scientific programs of the authors and thus reflects the current state of domestic plant metabolomics research. Professor Xiaoquan Qi is the principal investigator at the Institute of Botany, CAS. Professor Xiaoya Chen is a member of the Chinese Academy of Science and also is the principal investigator at the Shanghai Institutes for Biological Sciences, CAS. Professor Yulan Wang is leading a team in BioSpectroscopy and Metabolomics at the Wuhan Institute of Physics and Mathematics, CAS.

Advances In Lc Ms Instrumentation

Author: Achille Cappiello
Publisher: Elsevier
ISBN: 9780080467986
Size: 15.10 MB
Format: PDF
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The different LC-MS techniques available today were developed to suit specific analytical needs and the application range covered by each one is wide, but still limited. GC amenable compounds can be all analyzed with a single GC-MS system whereas HPLC applications call for specific LC-MS instrumental arrangements. ESI, APCI, APPI, and EI are ionization techniques that can be combined with different analyzers, in single or tandem configuration, to create the ultimate system for a certain application. Once approaching LC-MS for a specific need, the fast technical evolution and the variegated commercial offer can induce confusion in the potential user. The role of this book is to enlighten the state-of-the-art of LC-MS evolution through a series of contributions written by the people that brought major, recent innovations in the field. Each chapter will take into consideration the novelties, the advantages and the possible applications covered by a particular technical solution. The book will also include new analytical methods that can provide benefits using the most recent innovations in LC-MS plus a certain number of key applications. - Contains contributions from major innovators in the field - Covers the latest developments in the field of LC-MS - Gives a clear outline on the advantages of various techniques and their applications

Mass Spectrometry

Author: Edmond de Hoffmann
Publisher: John Wiley & Sons
ISBN: 1118681940
Size: 75.72 MB
Format: PDF, Docs
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The latest edition of a highly successful textbook, Mass Spectrometry, Third Edition provides students with a complete overview of the principles, theories and key applications of modern mass spectrometry. All instrumental aspects of mass spectrometry are clearly and concisely described: sources, analysers and detectors. Tandem mass spectrometry is introduced early on and then developed in more detail in a later chapter. Emphasis is placed throughout the text on optimal utilisation conditions. Various fragmentation patterns are described together with analytical information that derives from the mass spectra. This new edition has been thoroughly revised and updated and has been redesigned to give the book a more contemporary look. As with previous editions it contains numerous examples, references and a series of exercises of increasing difficulty to encourage student understanding. Updates include: Increased coverage of MALDI and ESI, more detailed description of time of flight spectrometers, new material on isotope ratio mass spectrometry, and an expanded range of applications. Mass Spectrometry, Third Edition is an invaluable resource for all undergraduate and postgraduate students using this technique in departments of chemistry, biochemistry, medicine, pharmacology, agriculture, material science and food science. It is also of interest for researchers looking for an overview of the latest techniques and developments.

Current Practice Of Gas Chromatography Mass Spectrometry

Author: Wilfried M.A. Niessen
Publisher: CRC Press
ISBN: 9781420029512
Size: 24.12 MB
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This volume details the principles and instrumentation of gas chromatography-mass spectrometry (CG-MS), and outlines industrial, environmental, pharmaceutical, clinical, toxicological, forensic and food-related applications, revealing findings from the laboratories of 40 contributing scientists around the world using GC-MS in practice. It describes upstream and downstream applications of GC-MS in the petroleum industry and identifies chlorinated compounds in the environment with quadrupole ion-trap technology and high-resolution sector instruments.

Lotus Japonicus Handbook

Author: Antonio J. Márquez
Publisher: Springer Science & Business Media
ISBN: 9781402037344
Size: 41.67 MB
Format: PDF, Mobi
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Legumes are very important plants playing a central role in biological research. They are a key component of sustainable agricultural systems because of symbiotic nitrogen fixation and other beneficial symbiosis with mycorrhizal fungi. Studies on most of the major leguminous crops are hampered by large genome sizes and other disadvantages which have hindered the isolation and characterisation of genes with important roles in legume biology and agriculture. For this reason Lotus japonicus was chosen as a model species for legume research some ten years ago. Since then, many groups around the world have adopted Lotus as a model and have developed numerous resources and protocols to facilitate basic and applied research on this species. This handbook represents the first effort to compile basic descriptions and methods for research in Lotus, including symbiotic processes, cell and molecular biology protocols, functional genomics, mutants, gene tagging and genetic analysis, transformation and reverse genetic analysis, primary and secondary metabolism, and an exhaustive update of the scientific literature available on this plant.

Chemical Derivatization In Analytical Chemistry

Author: R. W. Frei
Publisher: Springer Science & Business Media
ISBN: 1461591945
Size: 45.33 MB
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The first volume in this series is devoted to derivatization techniques in chromatography, for very obvious reasons. In gas chromatography (GC) chemical derivatization as an aid to expand the usefulness of the technique has been known for more than a decade and has become an established approach. The first chapter deals to a great extent with derivatization for the purpose of making compounds amenable to Gc. Although the discussion concentrates on pesticides, some generally valid conclusions can be drawn from this chapter. Chemistry will not be limited to the separation-it can also have a pronounced impact on the sample cleanup, another topic cov ered in Chapter 1. Since the introduction of coupled GC-mass spectroscopy (GC-MS), a very powerful tool, derivatization techniques have taken still another di rection-taking into consideration chromatographic as well as mass spec trometric improvement of the compounds of interest. Cyclic boronates are discussed as derivatization reagents for this purpose in the second chapter.