内標準を用いる誘導結合プラズマ発光分析法による希土類-鉄系超磁歪合金の組成分析

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概要

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• Rare earth-iron magnetostriction alloy (0.1g) was decomposed with hydrochloric acid and hydrogen peroxide within a few minutes. The solution obtained was diluted to 100 ml with water. To 10 ml of this diluted solution, an internal standard solution and hydrochloric acid were added and then diluted to 100 ml again with water. The amounts of Mn, Fe, Tb and Dy were measured by ICP-AES without any concomitant effect. Among the internal standard elements investigated (Sc, Y and La), La was most suitable. Recoveries of each element measured with a synthetic sample solution were over 99.7%. The relative standard deviations (n=5) were 0.04%〜0.35%.

• 社団法人日本分析化学会の論文
• 1993-02-05

著者

• 山下 務

  (株)東芝総合研究所

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