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Negative thermal ion mass spectrometry of osmium, rhenium, and iridiumThis paper describes a technique for obtaining, in a conventional surface ionization mass spectrometer, intense ion beams of negatively charged oxides of Os, Re, and Ir by thermal ionization. It is shown that the principal ion species of these ions are OsO3(-), ReO4(-), and IrO2(-), respectively. For Re-187/Os-187 studies, this technique offers the advantage of isotopic analyses without prior chemical separation of Re from Os.
Document ID
19910040104
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Creaser, R. A.
(California Inst. of Tech. Pasadena, CA, United States)
Papanastassiou, D. A.
(California Inst. of Tech. Pasadena, CA, United States)
Wasserburg, G. J.
(California Institute of Technology Pasadena, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1991
Publication Information
Publication: Geochimica et Cosmochimica Acta
Volume: 55
ISSN: 0016-7037
Subject Category
Atomic And Molecular Physics
Accession Number
91A24727
Funding Number(s)
CONTRACT_GRANT: NAG9-43
CONTRACT_GRANT: NSF EAR-88-16936
Distribution Limits
Public
Copyright
Other

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