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Subtoichiometric determination of indium and tin by radioactivation analysis

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Abstract

A method of radioactivation analysis has been developed for the determination of indium and tin. It is based on substoichiometric extraction of indium diethyldithiocarbamate into carbon tetrachloride from a slightly ammoniacal solution in the presence of potassium cyanide. With this method, indium can be determined via116mIn (T=54 min) and tin via113mIn (T=104 min) which is formed by the reaction112Sn(n, ψ)113Sn. The method has been applied to the determination of indium in metallic zinc and of tin in tin-doped gallium arsenide, and 0.4 ppb of indium was analyzed in a zinc sample.

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Authors and Affiliations

  1. Ibaraki Electrical Communication Laboratory, Nippon Telegraph and Telephone Public Corporation, Tokai, Ibaraki, (Japan)

    K. Kudo, H. Iso & T. Shigematsu

Authors
  1. K. Kudo
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  2. H. Iso
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  3. T. Shigematsu
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Kudo, K., Iso, H. & Shigematsu, T. Subtoichiometric determination of indium and tin by radioactivation analysis. J. Radioanal. Chem. 12, 451–459 (1972). https://doi.org/10.1007/BF02515337

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  • DOI: https://doi.org/10.1007/BF02515337

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