Abstract
The isotopic abundance ratios of190Os/184Os and96Ru/102Ru for the metal phases of the Jilin and Taonan stone meteorites were determined by pretreatment and radiochemical neutron activation analysis. All experimental factors affecting Os and Ru isotopic ratios were discussed, including sampling, standard, irradiation, separation and counting. The statistical errors of measurement for the199Os/184Os ratio can be controlled within 1%. The experimental results indicate that the statistically significant anomalies of the190Os/184Os and96Ru/102Ru ratios have not been found relative to the terrestrial Os and Ru standards.
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Chai, C., Liu, Y. & Mao, X. Determination of isotopic ratios of osmium and ruthenium in meteorites by pretreatment and radiochemical neutron activation analysis. Journal of Radioanalytical and Nuclear Chemistry, Articles 204, 159–165 (1996). https://doi.org/10.1007/BF02060876
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DOI: https://doi.org/10.1007/BF02060876