Lead Isotope Analyses of Standard Rock Samples
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概要
- 論文の詳細を見る
New results on lead isotope compositions of standard rock samples and their analytical procedures are reported. Bromide form anion exchange chromatography technique was adopted for the chemical separation of lead from rock samples. The lead contamination during whole analytical procedure was low enough to determine lead isotope composition of common natural rocks. Silica-gel activator method was applied for emission of lead ions in the mass spectrometer. Using the data reduction of "unfractionated ratios", we obtained good reproducibility, precision and accuracy on lead isotope compositions of NBS SRM. Here we present new reliable lead isotope compositions of GSJ standard rock samples and USGS standard rock, BCR-1.
- 日本質量分析学会の論文
著者
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Nakamura Eizo
Institute Of Mineralogy Petrology And Economic Geology Tohoku University
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Koide Yoshiyuki
Institute for Study of the Earths Interior, Okayama University
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Koide Yoshiyuki
Institute for Study of the Earth's Interior, Okayama University
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Nakamura Eizo
Institute for Study of the Earth's Interior, Okayama University
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