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Determination of nickel, gold and silver in gallium arsenide by radioactivation analysis based on the quantitative isotope dilution principle

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Abstract

A method of radioactivation analysis has been developed for the determination of Ni, Au and Ag impurities in gallium arsenide. The separation and substoichiometric extraction of these elements were studied and analytical procedures are suggested for their determination. All components are separated by suitable procedures and determined by substoichiometric methods. Ni is extracted as diethyldithiocarbamate into toluene, Au as a complex of rhodamine-B in chloroform, and Ag as dithizonate in carbon tetrachloride. The contents of Ni, Au and Ag in a gallium arsenide crystal with a carrier concentration of 1.8·1016/cm3 were 0.05–0.08, 0.006–0.008 and 0.002–0.005 ppm, respectively.

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Authors and Affiliations

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

    K. Kudo & N. Hishinuma

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  1. K. Kudo
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  2. N. Hishinuma
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Kudo, K., Hishinuma, N. Determination of nickel, gold and silver in gallium arsenide by radioactivation analysis based on the quantitative isotope dilution principle. J. Radioanal. Chem. 5, 331–341 (1970). https://doi.org/10.1007/BF02513850

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  • DOI: https://doi.org/10.1007/BF02513850

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