Novel applications of knudsen effusion mass spectrometry

N. S. Jacobson; J. A. Hurowitz; K. A. Farley; P. D. Asimow; J. A. Cartwright

doi:10.1149/05803.0003ecst

Novel applications of knudsen effusion mass spectrometry

N. S. Jacobson
, J. A. Hurowitz
, K. A. Farley
, P. D. Asimow
, J. A. Cartwright

Geosciences

NASA Glenn Research Center
California Institute of Technology

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

Knudsen effusion mass spectrometry (KEMS) is a valuable and versatile tool in physical chemistry, materials science, and geology. Most applications center on thermodynamic measurements. In this paper, two novel applications of KEMS are discussed. The first is the determination of K isotope ratios for application to K-Ar dating. The second is the determination of silica thermodynamic activities in silicates via a reducing agent to increase signals without changing the condensed phase composition. This also involves the measurement of vaporization coefficient via a multi-cell KEMS method.

Original language	English
Pages (from-to)	3-12
Number of pages	10
Journal	ECS Transactions
Volume	58
Issue number	3
DOIs	https://doi.org/10.1149/05803.0003ecst
State	Published - 2013

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AU - Cartwright, J. A.

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AB - Knudsen effusion mass spectrometry (KEMS) is a valuable and versatile tool in physical chemistry, materials science, and geology. Most applications center on thermodynamic measurements. In this paper, two novel applications of KEMS are discussed. The first is the determination of K isotope ratios for application to K-Ar dating. The second is the determination of silica thermodynamic activities in silicates via a reducing agent to increase signals without changing the condensed phase composition. This also involves the measurement of vaporization coefficient via a multi-cell KEMS method.

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Novel applications of knudsen effusion mass spectrometry

Abstract

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