Development of Ce Isotope Analysis for Cosmochemistry Using the Dynamic Multicollector Technique

DOI Web Site Web Site 被引用文献3件 参考文献38件
  • TANIMIZU Masaharu
    Institute for Frontier Research on Earth Evolution, Japan Marine Science and Technology Center
  • HAYASHI Takamasa
    Department of Earth and Planetary Sciences, Graduate School of Environmental Studies, Nagoya University
  • TANAKA Tsuyoshi
    Department of Earth and Planetary Sciences, Graduate School of Environmental Studies, Nagoya University

この論文をさがす

抄録

Precise and accurate Ce isotope analysis technique was developed with one order of magnitude smaller ion beam intensity compared with previous studies to apply 138La-138Ce decay system to smaller samples. 138Ce/142Ce and 136Ce/142Ce isotope ratios were accurately determined by canceling not only the fluctuation of ion beam intensities but also the Faraday cup efficiencies and amplifier gains with the dynamic multicollector technique. In situ 18O/16O determination for Ce18O correction and 140Ce/142Ce normalization for mass fractionation were applied to the accurate analysis. A repeated analysis of 138Ce/142Ce and 136Ce/142Ce ratios of a Ce isotopic reference, JMC304, were 0.0225889±0.0000013 and 0.0168810±0.0000030. This technique has almost the same precision and reproducibility in comparison with previous Ce isotope studies, and will be suitable for samples with limited amount like extra-terrestrial materials, including detection of p-process nuclide anomalies of 138Ce and 136Ce.

収録刊行物

  • 質量分析

    質量分析 52 (4), 177-181, 2004

    一般社団法人 日本質量分析学会

被引用文献 (3)*注記

もっと見る

参考文献 (38)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ