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アンチモンの高精度定量

DOI NDLデジタルコレクション Web Site Web Site 被引用文献5件

書誌事項

タイトル別名
  • Precise determination of ng g-1 levels of antimony in high purity copper by isotope dilution/ICP-MS.
  • 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

この論文をさがす

抄録

Isotope dilution/inductively coupled plasma mass spectrometry (ID/ICPMS) was applied to the determination of ng g-1 levels of antimony in high purity copper. Mass discrimination effects of two main components, copper as a matrix and lanthanum for coprecipitation, on the measurement of isotope ratio(123Sb/121Sb) were not significant.It was found that there is isobaric interference of 123Te in the measurement of the isotope ratio. But this effect could be corrected by subtracting the spectral intensity of 123Te from that of m/z=123; the intensity of 123Te can be obtained by measuring the intensity of 125Te and the relative intensity of 123Te and 125Te. The analytical results for NIST SRMs obtained by ID/ICPMS agreed well with the certified values. After concentrating antimony by the coprecipitation method, ID/ICPMS can determine 4.4 ng g-1 of antimony in copper sample with 10% RSD.

収録刊行物

  • 分析化学

    分析化学 40 (3), 109-114, 1991

    公益社団法人 日本分析化学会

被引用文献 (5)*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