Osmium isotopic compositions by vapor phase sample introduction using a multi-collector ICP-MS

Date

2002

Authors

Norman, Marc
Bennett, Victoria
McCulloch, Malcolm
Kinsley, Leslie

Journal Title

Journal ISSN

Volume Title

Publisher

Royal Society of Chemistry

Abstract

Osmium isotopic compositions have been measured using a vapor phase sample introduction technique in which volatile OsO4 is sparged directly into a multi-collector ICP-MS for analysis. Replicate analyses of an in-house solution standard yield an average188Os/192Os value that is within 10 ppm of the accepted natural value when corrected for mass discrimination using189Os/192Os, with a reproducibility of ±0.5 permil (2 SE, □ = 9) for samples containing 10 ng of Os. The average187Os/192Os measured for this solution agrees with the value determined by negative thermal ionization mass spectrometry to <1 permil, with a precision of ±1.5 permil (2 SE). Vapour phase analysis of Os isotopic compositions by MC-ICP-MS is applicable to a variety of geological and environmental studies.

Description

Keywords

Keywords: Environmental engineering; Geology; Inductively coupled plasma; Ionization; Isotopes; Osmium; Vapor phase analysis; Mass spectrometry

Citation

Source

Journal of Analytical Atomic Spectrometry

Type

Journal article

Book Title

Entity type

Access Statement

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DOI

10.1039/b204518d

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