同位体希釈-誘導結合プラズマ質量分析法による高純度銅中の銀の高精度定量

書誌事項

タイトル別名
  • Precise determination of silver in high purity copper by isotope dilution/ICP-MS.
  • 同位体希釈‐誘導結合プラズマ質量分析法による高純度銅中の銀の高精度定量
  • ドウイタイ キシャク ユウドウ ケツゴウ プラズマ シツリョウ ブンセキホウ

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抄録

Isotope dilution/inductively coupled plasma mass spectrometry (ID-ICPMS) was applied to determine trace levels of silver in high purity copper. In this experiment, mass discrimination effects by two main components, copper as a matrix and tellurium used for coprecipitation, on the measurments of isotope ratio (107Ag/109Ag) were not significant in ICP-MS. The analytical results for NIST SRMs by ID-ICPMS agreed well with the certified values and those obtained by standard addition using ICP-MS. After concentrating silver by the coprecipitation method, ID-ICPMS can determine a trace level of silver at 0.106 μg g-1 in copper with 3.8% RSD.

収録刊行物

  • 分析化学

    分析化学 39 (5), 283-287, 1990

    公益社団法人 日本分析化学会

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