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Ion Dissociation In The Drift Tube Of A Time Of Flight Mass Spectrometer
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Book Synopsis Ion Dissociation in the Drift Tube of a Time-of-flight Mass Spectrometer by : W. W. Hunt
Download or read book Ion Dissociation in the Drift Tube of a Time-of-flight Mass Spectrometer written by W. W. Hunt and published by . This book was released on 1964 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spurious fragment peaks that simulate fragment-ion products of ion dissociation reactions occurring in the reaction region can arise from processes that occur after the reactant ion has passed through the reaction region and entered the potential barrier used to separate normal products and reactants. Analytic expressions for the flighttime shifts characteristics of peaks arising in this way are derived. These flight-time shifts depend on the distance from the ion source to the potential barrier, whereas flight-time shifts for true fragments formed in the reaction zone are independent of this distance. (Author).
Book Synopsis Ion Dissociation in the Drift Tube of a Time-of-flight Mass Spectrometer by : W. W. Hunt (Jr.)
Download or read book Ion Dissociation in the Drift Tube of a Time-of-flight Mass Spectrometer written by W. W. Hunt (Jr.) and published by . This book was released on 1963 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ion Dissociation in the Drift Tube of a Time-of-flight Mass Spectrometer by : W. W. Hunt
Download or read book Ion Dissociation in the Drift Tube of a Time-of-flight Mass Spectrometer written by W. W. Hunt and published by . This book was released on 1964 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Applying screened trapezoidal potential barriers in the drift tube of a time-of-flight mass spectrometer produces flighttime shifts that can be used to separate and identify products of ion dissociation processes occurring between the ion source and the potential barrier. The flight-time shift is a function of the retarder voltage and mass-to-charge ratios of the fragment and parent ions, expressed by the flight-time shift equation. When the retarder voltage is known, analytic solu tions of this equation allow the retarded ions (fragment or parent) to be identified from the measured flight-time shifts. When the mass-to-charge ratios of these ions are known, similar solutions allow the retarder voltage that will produce a given flight-time shift to be predicted. For part IV see AD-429 438. (Author).
Book Synopsis Ion Dissociation in the Drift Tube of a Time-of-flight Mass Spectrometer by : W. W. Hunt (Jr.)
Download or read book Ion Dissociation in the Drift Tube of a Time-of-flight Mass Spectrometer written by W. W. Hunt (Jr.) and published by . This book was released on 1965 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ion Dissociation in the Drift Tube of a Time-of-flight Mass Spectrometer by : W. W. Hunt (Jr.)
Download or read book Ion Dissociation in the Drift Tube of a Time-of-flight Mass Spectrometer written by W. W. Hunt (Jr.) and published by . This book was released on 1963 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fixed [delta]t method of identifying fragment ions formed in the drift tube (analyzer) of a time-of-flight mass spectrometer depends on determining the potential barrier characteristics required to produce a preselected flight-time shift. It is both simpler and more accurate than the comparison method used in a previous series of experiments.
Book Synopsis Observation and Identification of Ion Dissociation Processes Occurring in the Drift Tube of a Time-of-flight Mass Spectrometer by : W. W. Hunt (Jr.)
Download or read book Observation and Identification of Ion Dissociation Processes Occurring in the Drift Tube of a Time-of-flight Mass Spectrometer written by W. W. Hunt (Jr.) and published by . This book was released on 1963 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: The shifts in ion flight times produced by a flat-top potential barrier applied within the drift tube of a time-of-flight mass spectrometer are defined analytically in terms of the height of the potential barrier. These flight-time shifts are selectively dependent on the mass, charge, and kinetic energy of the ions involved; consequently, they can be used to spearate and identify the products of ion dissociation processes occurring in the drift tube. Comparisons of calculated and observed flight-time shifts for the 58 + to 43+, 42+ dissociations in n-butane are used to illustrate the applicability and present limitations of this method of identifying dissociation products. (Author).
Book Synopsis Observation and Identification of Ion Dissociation Proceses Occurring in the Drift Tube of a Time-of-flight Mass Spectrometer by : W. W. Hunt
Download or read book Observation and Identification of Ion Dissociation Proceses Occurring in the Drift Tube of a Time-of-flight Mass Spectrometer written by W. W. Hunt and published by . This book was released on 1963 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ion Dissociation in the Drift Tube of a Time-of-flight Mass Spectrometer by : W. W. Hunt (Jr.)
Download or read book Ion Dissociation in the Drift Tube of a Time-of-flight Mass Spectrometer written by W. W. Hunt (Jr.) and published by . This book was released on 1963 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fixed [delta]t method of identifying fragment ions formed in the drift tube (analyzer) of a time-of-flight mass spectrometer depends on determining the potential barrier characteristics required to produce a preselected flight-time shift. It is both simpler and more accurate than the comparison method used in a previous series of experiments.
Book Synopsis Observation of 2, 1 Charge Transfer in a TOF Mass Spectrometer by : W. W. Hunt
Download or read book Observation of 2, 1 Charge Transfer in a TOF Mass Spectrometer written by W. W. Hunt and published by . This book was released on 1964 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: The drift tube of a time-of-flight mass spectrometer has been adapted to serve as a reaction/collision chamber for studying ion dissociation reactions and charge-changing collisions. The methods for identifying the products of such processes depend on shifts in flight times produced by symmetric potential barriers, and are normally used in studying processes in which the mass-to-charge ratio (m/q) of the charged product particle is less than that of its parent. Processes in which the m/q of a charged product is greater than that of its parent represent an interesting special case, since the behavior of the product particle is quite different from that normally encountered. To illustrate this behavior, experimental observations of the 2, 1 charge transfer process N2(++) + N2O = N2(+) + N2O(+) at 6000 ev are presented. (Author).
Book Synopsis Charge Transfer Studies with a Time-of-flight Mass Spectrometer by : W. W. Hunt
Download or read book Charge Transfer Studies with a Time-of-flight Mass Spectrometer written by W. W. Hunt and published by . This book was released on 1964 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: The kinetics of charge transfer processes that occur in the drift tube of a time-of-flight mass spectrometer are analyzed, with due regard to attenuation of both ions and neutrals by scattering. The same equation that expresses the charge transfer cross section in terms of experimentally measurable quantities provides for independent determination, from the same experimental measurements, of the difference between the total scattering cross section for the neutrals and that for the ions involved in the charge transfer process being studied. A second, and much simpler, equation for the charge transfer cross section is used when the scattering cross sections for neutrals and ions are the same. Both equations allow for differences in detector response to neutrals compared with that to ions. (Author).
Book Synopsis Charge Transfer Studies with a Time-of-flight Mass Spectrometer by : W. W. Hunt (Jr.)
Download or read book Charge Transfer Studies with a Time-of-flight Mass Spectrometer written by W. W. Hunt (Jr.) and published by . This book was released on 1963 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Charge Transfer Studies with a Time-of-flight Mass Spectrometer by : W. W. Hunt (Jr.)
Download or read book Charge Transfer Studies with a Time-of-flight Mass Spectrometer written by W. W. Hunt (Jr.) and published by . This book was released on 1963 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Report on Research at AFCRL by : Air Force Cambridge Research Laboratories (U.S.)
Download or read book Report on Research at AFCRL written by Air Force Cambridge Research Laboratories (U.S.) and published by . This book was released on 1965 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: Summaries are given of research in the following fields: upper atmosphere physics, microwave physics, space physics, terrestrial sciences, optical physics, data sciences, meteorology, solid state, aerospace instrumentation.
Book Synopsis Instrumentation for Geophysics and Astrophysics by :
Download or read book Instrumentation for Geophysics and Astrophysics written by and published by . This book was released on 1963 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1964 with total page 1664 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Book Synopsis Even Electron Mass Spectrometry with Biomolecule Applications by : Bryan M. Ham
Download or read book Even Electron Mass Spectrometry with Biomolecule Applications written by Bryan M. Ham and published by John Wiley & Sons. This book was released on 2008-04-11 with total page 453 pages. Available in PDF, EPUB and Kindle. Book excerpt: In addition to the essential theoretical background and fundamental principles, this unique reference presents a detailed, step-by-step methodology for interpreting even electron mass spectrometry results. Specific chapters are devoted to: proteomics; biomolecule spectral interpretation of small molecules; biomolecule spectral interpretation of biological macromolecules; and MALDI-TOF-Postsource Decay (PSD). Chapters feature detailed examples, questions, and problems to help readers solidify their understanding of the concepts and techniques.
Book Synopsis Ion Mobility Spectrometry, Third Edition by : G.A. Eiceman
Download or read book Ion Mobility Spectrometry, Third Edition written by G.A. Eiceman and published by CRC Press. This book was released on 2013-12-10 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the turn of the twenty-first century, applications of ion mobility spectrometry (IMS) have diversified, expanding their utility in the military and security spheres and entering the realms of clinical practice and pharmaceutical exploration. Updated and expanded, the third edition of Ion Mobility Spectrometry begins with a comprehensive discussion of the fundamental theory and practice of IMS. Divided into four sections—Overview, Technology, Fundamentals, and Applications—the authors treat innovations and advances in all aspects of IMS in a fresh, thorough, and revised format. Features: Introduces the definitions, theory, and practice of IMS and summarizes its history from the beginnings of the study of ions to present commercial and scholarly activities Presents the technology of IMS from a measurement perspective—covering inlet through ion formation, ion injection, electric fields, drift tube structures, and detectors Covers the end results of measurement, the mobility spectrum, and the transformative trend of ion mobility: mass spectrometry Discusses the influence on the experimental parameters on the mobility of ions Mobility-based methods are no longer restricted to volatile substances and indeed the many benefits of this technology—simplicity, convenience, and the low cost of technology—have become recognized as meritorious in a wide range of uses. This is also true for the advantages of measurements—high speed, distinctive spectral features, and operation in ambient pressure with thermalized ions. Ion Mobility Spectrometry, Third Edition serves specialists in the field of IMS who are interested in the potential of recent developments and researchers, engineers, and students who want a comprehensive overview of this technology.
