Negative thermal ion mass spectrometry of osmium, rhenium, and iridium

Details Negative thermal ion mass spectrometry of osmium, rhenium, and iridium Negative thermal ion mass spectrometry of osmium, rhenium, and iridium

Jan 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991gecoa..55..397c&link_type=abstract

Geochimica et Cosmochimica Acta (ISSN 0016-7037), vol. 55, Jan. 1991, p. 397-401.

Computer Science

74

Ion Beams, Iridium, Mass Spectroscopy, Osmium Isotopes, Rhenium Isotopes, Isotope Separation, Osmium Compounds, Rhenium Compounds, Surface Ionization

Scientific paper

This 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.

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