The Mobility, Diffusion, and Clustering of K(+) Ions in Gases. Report II. PDF Download
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Author: D. R. James
Publisher:
ISBN:
Category :
Languages : en
Pages : 21
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Book Description
The authors have used a drift tube mass spectrometer to measure the mobilities and longitudinal diffusion coefficients of K(+) ions in argon at 300K. The range of E/N extends from 1 to 610 Td, where E is the electric field intensity and N is the number density of the neutral gas. The zero-field reduced mobility of K(+) in argon was found. The diffusion coefficient data is compared with values obtained from the Wannier theory for motion of ions in strong electric fields. Also included are tabulated transport data for K(+) in Ar, N2, and CO. (Author).
Author: D. R. James
Publisher:
ISBN:
Category :
Languages : en
Pages : 21
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Book Description
The authors have used a drift tube mass spectrometer to measure the mobilities and longitudinal diffusion coefficients of K(+) ions in argon at 300K. The range of E/N extends from 1 to 610 Td, where E is the electric field intensity and N is the number density of the neutral gas. The zero-field reduced mobility of K(+) in argon was found. The diffusion coefficient data is compared with values obtained from the Wannier theory for motion of ions in strong electric fields. Also included are tabulated transport data for K(+) in Ar, N2, and CO. (Author).
Author: G. M. Thomson
Publisher:
ISBN:
Category :
Languages : en
Pages : 38
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The authors have measured, with a drift tube mass spectrometer, the mobilities and longitudinal diffusion coefficients of K(+) ions in nitrogen and carbon monoxide at 300K. The zero-field reduced mobilities of K(+) ions in N2 and CO were determined. The experimental diffusion coefficients were compared with the predictions of an equation developed by Wannier on the assumption that the ion-molecule interaction consists of only the attractive polarization force. Comparison is also made with a modified version of this equation which contains the ionic drift velocity rather than the mean free time. Also observed was the clustering of single molecules of CO2, NO, CO, N2, O2, Ar, D2, Ne, and He to K(+) ions.
Author:
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Category : Technology
Languages : en
Pages : 898
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Category : Aeronautics
Languages : en
Pages : 702
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Category : Engineering
Languages : en
Pages : 966
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Author: Alexandre A. Shvartsburg
Publisher: CRC Press
ISBN: 9781420051070
Category : Science
Languages : en
Pages : 322
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Book Description
Over the last decade, scientific and engineering interests have been shifting from conventional ion mobility spectrometry (IMS) to field asymmetric waveform ion mobility spectrometry (FAIMS). Differential Ion Mobility Spectrometry: Nonlinear Ion Transport and Fundamentals of FAIMS explores this new analytical technology that separates and characterizes ions by the difference between their mobility in gases at high and low electric fields. It also covers the novel topics of higher-order differential IMS and IMS with alignment of dipole direction. The book relates the fundamentals of FAIMS and other nonlinear IMS methods to the physics of gas-phase ion transport. It begins with the basics of ion diffusion and mobility in gases, covering the main attributes of conventional IMS that are relevant to all IMS approaches. Building on this foundation, the author reviews diverse high-field transport phenomena that underlie differential IMS. He discusses the conceptual implementation and first-principles optimization of FAIMS as a filtering technique, emphasizing the dependence of FAIMS performance metrics on instrumental parameters and properties of ion species. He also explores ion reactions in FAIMS caused by field heating and the effects of inhomogeneous electric field in curved FAIMS gaps. Written by an accomplished scientist in the field, this state-of-the-art book supplies the foundation to understand the new technology of nonlinear IMS methods.
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Category : Power resources
Languages : en
Pages : 600
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Category : Public health
Languages : en
Pages : 1278
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Category : Nuclear energy
Languages : en
Pages : 1858
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Author:
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ISBN:
Category : Nuclear energy
Languages : en
Pages : 964
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