Ion Molecule Attachment Reactions Mass Spectrometry
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Ion Molecule Attachment Reactions Mass Spectrometry
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Author : Toshihiro Fujii
language : en
Publisher: Springer
Release Date : 2015-08-03
Ion Molecule Attachment Reactions Mass Spectrometry written by Toshihiro Fujii and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-08-03 with Science categories.
This book explores the mechanism of alkali-metal ion/molecule association reaction, surveys the instrumental basis to study its kinetic, and describes the instrumentation to the measurement of alkali-metal ion affinities. The applications of the ion complexation mechanism in the condensed phase in reaction to direct analysis MS are also covered. Other topics include mechanism and reaction rate, experimental and theoretical ion affinities, applications of ion attachment reactions (IAR) to mass spectrometry such as alkali ion CIMS, ion attachment MS and cationization mass spectrometry of ESI, FAB, FD, LD, MALDI and SIMS and topics of IAR-based direct analysis mass spectrometry.
Chemical Ionization Mass Spectrometry
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Author : Alex. G. Harrison
language : en
Publisher: Routledge
Release Date : 2018-05-11
Chemical Ionization Mass Spectrometry written by Alex. G. Harrison and has been published by Routledge this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-05-11 with Science categories.
The only comprehensive guide to CIMS applications in structural elucidation and analytical studies Chemical Ionization Mass Spectrometry, 2nd Edition, provides a comprehensive, up-to-date review of CIMS applications in structural elucidation and quantitative analytical studies. For the benefit of readers without a background in gaseous ion chemistry, a thorough review is presented in Chapter 2. Other chapters discuss such topics as reagent ion systems within the context of the thermochemistry and kinetics of the ionization process, including reactions and the type of information obtained; isotopic exchange reactions; stereochemical effects in chemical ionization; and reactive ion/molecule collisions in quadrupole cells. Chemical ionization mass spectra of 13 classes of compounds are discussed in detail to illustrate the influence of different functional groups on the spectra observed. Chemical Ionization Mass Spectrometry, 2nd Edition will be a valuable reference for anyone interested in mass spectrometry and gaseous ion chemistry in general.
Mass Spectrometry And Ion Molecule Reactions
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Author :
language : en
Publisher: CUP Archive
Release Date :
Mass Spectrometry And Ion Molecule Reactions written by and has been published by CUP Archive this book supported file pdf, txt, epub, kindle and other format this book has been release on with categories.
The Production And Fate Of Molecular Anions Formed By Electron Attachment To Low Electron Affinity Compounds
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Author : Michael Jeffrey Salyards
language : en
Publisher:
Release Date : 2003-06-01
The Production And Fate Of Molecular Anions Formed By Electron Attachment To Low Electron Affinity Compounds written by Michael Jeffrey Salyards and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003-06-01 with Anthracene categories.
Resonance electron capture and thermal electron detachment rate constants have been determined for several low electron affinity (EA) compounds, including anthracene, benzophenone, quinoxaline. These measurements were taken by comparing the molecule of interest with SF(6) using pulsed high pressure mass spectrometry (PHPMS) to evaluate the time profiles for the relevant anions. These measurements were affected by recapture of detached electrons as well as loss of these electrons by diffusion to the walls of the ion source. This dissertation also explains why these low EA molecules are not seen at atmospheric conditions. Using the PHPMS, the reactions of the molecular anions of anthracene, quinazoline, benzophenone, quinoxaline and azulene with oxygen and water have been studied. In the simultaneous presence of oxygen and water, these molecular anions, M, are rapidly destroyed and the ion, (O2 - H2O), is rapidly formed. The high rate with which this transition occurs cannot be explained by the simplest model envisioned that is based on well-known ion molecule reactions. These results can be explained, however, by inclusion into the model of a previously uncharacterized reaction between the molecular ion- oxygen complex, (M-O(2)), and water. The results reported here explain why the molecular anions of compounds that have lower EA's than that of azulene are not readily observed in electron capture ion sources of one atmosphere buffer gas pressure. In addition, it is shown that the reactions characterized here lead to a state of chemical equilibrium between the M and (O2 -H(2)O) ions within the PHPMS ion source from which the EA values of the low-EA compounds can be determined. By this method the electron affinities of anthracene, quinazoline, benzophenone and quinoxaline are found to be 0.54, 0.56, 0.61 and 0.68 eV, respectively.
A Bibliography On Ion Molecule Reactions January 1900 To March 1966
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Author : F. N. Harllee
language : en
Publisher:
Release Date : 1966
A Bibliography On Ion Molecule Reactions January 1900 To March 1966 written by F. N. Harllee and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1966 with Ions categories.
Mass Spectrometry Of Organic Ions
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Author : F.W. McLafferty
language : en
Publisher: Elsevier
Release Date : 2012-12-02
Mass Spectrometry Of Organic Ions written by F.W. McLafferty 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.
Mass Spectrometry of Organic Ions covers the underlying theories and major applications of mass spectrometry. This 13-chapter book starts with a survey of the mechanisms by which organic ions can decompose and rearrange, as well as the generalized concept in terms of physical-organic chemistry. The discussion then shifts to the advantages and potential of mass spectrometry in structure determination by the elucidation of the empirical formulas of organic ions. Considerable chapters are devoted to the detailed correlations and mechanisms of the mass spectra of long-chain esters, alkylbenzenes, a variety of natural products, aliphatic compounds, and terpenes. The remaining chapters demonstrate the illustrative power of mass spectrometry in structure of petroleum, which is composed of hydrocarbon mixture. This book will be of great benefit to organic and analytical chemists, scientists, and students.
Two Studies In Gas Phase Ion Spectroscopy
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Author : Matthew J. Simpson
language : en
Publisher: Springer Science & Business Media
Release Date : 2011-10-15
Two Studies In Gas Phase Ion Spectroscopy written by Matthew J. Simpson and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-10-15 with Science categories.
In this thesis Matthew Simpson reportstwo areas of work in gas ion spectroscopy, each investigation in itself worthy of a PhD. The first study uses tunable vacuum-ultraviolet radiation from a synchrotron to identify negative ions from twenty four photoexcited polyatomic molecules in the gas phase. From these experiments, Matthew collects a vast amount of data and summarises and reviews ion-pair formation from polyatomic molecules. The second study is on selected ion flow tube mass spectrometry. Matthew investigates the reactions of cations and anions with ethene, monofluoroethene, 1,1-difluoroethene and tetrafluoroethene. In this study Matthew tries to explain why certain products are formed preferentially over other products at a microscopic level of understanding. The data recorded in this thesis form the most comprehensive collection of information about anion formation and are the basis of a review and numerous articles in specialist journals.
Gaseous Molecular Ions
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Author : Eugen Illenberger
language : en
Publisher: Springer Science & Business Media
Release Date : 1992-05-26
Gaseous Molecular Ions written by Eugen Illenberger and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992-05-26 with Science categories.
Most of the matter in our solar system, and, probably, within the whole universe, exists in the form of ionized particles. On the other hand, in our natural environ ment, gaseous matter generally consists of neutral atoms and molecules. Only under certain conditions, such as within the path oflightning or in several technical devices (e. g. gas discharges, rocket engines, etc. ) will some of the atoms and molecules be ionized. It is also believed that the chemistry of the earth's troposphere predomi nantly proceeds via reactions between neutral particles. (The complex system of atmospheric chemistry will be treated in one of the forthcoming volumes to this series. ) Why, then, are ions considered so important that hundreds oflaboratories all over the world (including some of the most prestigious) are involved in research pro grams on ions, covering many different facets, from biochemistry to physics? One may obtain as many different answers as there are research groups busy in this field. There is, however, one simple, common feature which makes it attractive to work with ions: since they carry one or more net elementary charges, they can easily be gui ded, focused or separated by appropriate electric and magnetic fields, and, last but not least, they can easily be detected. Apart from these advantages, which are welcome and appreciated by the researcher, the study of molecular ions can provide insight into very fundamental aspects of the general behavior of molecules.
Bibliography Of Mass Spectroscopy Literature For 1970
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Author :
language : en
Publisher:
Release Date : 1972
Bibliography Of Mass Spectroscopy Literature For 1970 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1972 with Mass spectrometry categories.
Advances In Atomic Molecular And Optical Physics
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Author :
language : en
Publisher: Academic Press
Release Date : 2012-10-18
Advances In Atomic Molecular And Optical Physics written by and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-10-18 with Science categories.
Advances in Atomic, Molecular, and Optical Physics publishes reviews of recent developments in a field which is in a state of rapid growth, as new experimental and theoretical techniques are used on many old and new problems. Topics covered include related applied areas, such as atmospheric science, astrophysics, surface physics and laser physics. Articles are written by distinguished experts, and contain both relevant review material and detailed descriptions of important recent developments. International experts Comprehensive articles New developments