ICP-AES; Sample dissolution and stability of the solution.

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  • UCHIDA Tetsuo
    Laboratory of Analytical Chemistry, Department of Applied Chemistry, Nagoya Institute of Technology
  • OKUYAMA Syuji
    Laboratory of Analytical Chemistry, Department of Applied Chemistry, Nagoya Institute of Technology
  • ITO Yoshikazu
    Laboratory of Analytical Chemistry, Department of Applied Chemistry, Nagoya Institute of Technology
  • KOJIMA Isao
    Laboratory of Analytical Chemistry, Department of Applied Chemistry, Nagoya Institute of Technology
  • IIDA Chuzo
    Laboratory of Analytical Chemistry, Department of Applied Chemistry, Nagoya Institute of Technology

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Other Title
  • 誘導結合プラズマ発光分析法による青銅器主成分の定量　　試料溶解と溶液の安定性
  • ユウドウ ケツゴウ プラズマ ハッコウ ブンセキホウ ニ ヨル セイドウキ シ
  • Sample dissolution and stability of the solution
  • 試料溶解と溶液の安定性

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Abstract

In 0.3 M HCl, tin was stable only for 1 month, but it was stable over 4 months in 1 M HCl. Thus the acidity of sample solution was kept in 1 M HCl. The sample block was drilled with tungsten carbide tip and chips of 50 mg were dissolved in 0.2 ml of H2O and 0.3 ml of HNO3 with gentle heating on a hot plate, if necessary. The white residue of metastannic acid was easily dissolved by the addition of 8.5 ml of HCl. The final solution was made up to 100 g with H2O, which was used for sequential ICP-AES determinations of Cu, Sn, Pb, Zn and Ni. These major elements in the solution were stable for at least 2 months even if the residual HNO3 was 0.5 M. The present method was successfully applied for BCS No. 183/3, Leaded Gunmetal, an ancient bronze and some recent bronzes imitated from the ancient.

Journal

  • BUNSEKI KAGAKU

    BUNSEKI KAGAKU 38 (4), T49-T53, 1989

    The Japan Society for Analytical Chemistry

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