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Team TFS
Team TFS
1) Department of Earth Science, University in Bergen, Bergen, Norway N-5007, 2) Department of Earth Sciences, Memorial University of Newfoundland, St John’s, NL, Canada A1B 3X5
Journal of Analytical Atomic Spectrometry (2005), V20, pp192–199 doi: 10.1039/b412169d
Analysis of Fe isotopes in sulfides and iron meteorites by laser ablation high-mass resolution multi-collector ICP mass spectrometry
Jan Kosler (1), Rolf B. Pedersen (1), Claudia Kruber (1) and Paul J. Sylvester (2)
The isotopic composition of Fe in iron meteorites and iron sulfides was studied with a UV laser (213 nm wavelength) and a high-mass resolution multicollector-ICP-MS. The long term reproducibility of Fe isotopic measurements was 0.16 and 0.21‰ (2 standard deviations) for d56Fe and d57Fe, respectively, i.e., a factor of ~2 worse than conventional solution analysis. At present the major limitations of precision and accuracy in the laser ablation technique are instrumental mass discrimination (2.0–4.9% per amu) and laser-induced fractionation (up to 4% during a single analysis) of Fe isotopes.
  • Neptune
  • Fe isotopes
  • Meteorites
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‎11-09-2021 04:16 AM
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