Ambient Pressure Ion-Molecule Reactions: Toward a Comprehensive Understanding PDF Download
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Languages : en
Pages : 16
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Book Description
Ion Mobility Spectrometry IMS as provided the US Army with capabilities for ultrasensitive detection of chemical warfare agents and this technology is undergoing continued development and refinement today as a miniaturized detector of warfare agents. The basis for response in this technology is gas phase ion chemistry at ambient atmosphere; however, no broad framework has existed for understanding this chemistry and no predictive ans interpretative capabilities have existed for mobility spectra. This has meant that a new chemical agent deployed against US soldiers could conceivably be unrecognized by existing methods. A comprehensive model for the prediction and interpretation of mobility spectra was created here and tools are available to understand and predict spectra for the first time in history of modern analytical mobility spectrometry. Predictive capabilities are rooted in assessments of ion stability, ion lifetimes, times for ion drift, temperature and moisture. Interpretative capabilities were attained through neural networks and spectral assignments succeeded on the basis of previously uncharacterized fragmentation of ions at ambient atmosphere. The results from this work demonstrated the possibility that an unknown or unfamiliar chemical can be categorized or recognized by chemical class.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 16
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Book Description
Ion Mobility Spectrometry IMS as provided the US Army with capabilities for ultrasensitive detection of chemical warfare agents and this technology is undergoing continued development and refinement today as a miniaturized detector of warfare agents. The basis for response in this technology is gas phase ion chemistry at ambient atmosphere; however, no broad framework has existed for understanding this chemistry and no predictive ans interpretative capabilities have existed for mobility spectra. This has meant that a new chemical agent deployed against US soldiers could conceivably be unrecognized by existing methods. A comprehensive model for the prediction and interpretation of mobility spectra was created here and tools are available to understand and predict spectra for the first time in history of modern analytical mobility spectrometry. Predictive capabilities are rooted in assessments of ion stability, ion lifetimes, times for ion drift, temperature and moisture. Interpretative capabilities were attained through neural networks and spectral assignments succeeded on the basis of previously uncharacterized fragmentation of ions at ambient atmosphere. The results from this work demonstrated the possibility that an unknown or unfamiliar chemical can be categorized or recognized by chemical class.
Author: Joseph Louis Franklin
Publisher:
ISBN: 9780879333379
Category : Chemical reaction, Conditions and laws of
Languages : en
Pages : 378
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Book Description
Author: Toshihiro Fujii
Publisher: Springer
ISBN: 1489975888
Category : Science
Languages : en
Pages : 350
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Book Description
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.
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Category : Environmental health
Languages : en
Pages : 262
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Book Description
Author: Albert Lebedev
Publisher: ILM Publications
ISBN: 1906799121
Category : Science
Languages : en
Pages : 544
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Book Description
"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.
Author: K.H. Becker
Publisher: CRC Press
ISBN: 1482269120
Category : Science
Languages : en
Pages : 701
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Book Description
Atmospheric-pressure plasmas continue to attract considerable research interest due to their diverse applications, including high power lasers, opening switches, novel plasma processing applications and sputtering, EM absorbers and reflectors, remediation of gaseous pollutants, excimer lamps, and other noncoherent light sources. Atmospheric-pressu
Author:
Publisher:
ISBN:
Category : Military research
Languages : en
Pages : 834
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Book Description
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 542
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Book Description
Author: Nader Rifai
Publisher: Elsevier
ISBN: 0128160640
Category : Science
Languages : en
Pages : 218
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Book Description
Principles and Applications of Clinical Mass Spectrometry: Small Molecules, Peptides, and Pathogens is a concise resource for quick implementation of mass spectrometry methods in clinical laboratory work. Focusing on the practical use of these techniques, the first half of the book covers principles of chromatographic separations, principles and types of mass spectrometers, and sample preparation for analysis; the second half outlines the main applications of this technology within clinical laboratory settings, including determination of small molecules and peptides, as well as pathogen identification. A thorough yet succinct guide to using mass spectrometry technology in the clinical laboratory, Principles and Applications of Clinical Mass Spectrometry: Small Molecules, Peptides, and Pathogens is an essential resource for chemists, pharmaceutical and biotech researchers, certain government agencies, and standardization groups. Provides concrete examples of the main applications of mass spectrometry technology Describes current capabilities of the LC- and MS-based analytical methods Details methods for successful analytical work in the field
Author: J. Throck Watson
Publisher: John Wiley & Sons
ISBN: 1118681584
Category : Science
Languages : en
Pages : 972
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Book Description
Completely revised and updated, this text provides an easy-to-read guide to the concept of mass spectrometry and demonstrates its potential and limitations. Written by internationally recognised experts and utilising "real life" examples of analyses and applications, the book presents real cases of qualitative and quantitative applications of mass spectrometry. Unlike other mass spectrometry texts, this comprehensive reference provides systematic descriptions of the various types of mass analysers and ionisation, along with corresponding strategies for interpretation of data. The book concludes with a comprehensive 3000 references. This multi-disciplined text covers the fundamentals as well as recent advance in this topic, providing need-to-know information for researchers in many disciplines including pharmaceutical, environmental and biomedical analysis who are utilizing mass spectrometry
