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Preconcentration and Separation of Trace Amounts of Bismuth in High Purity Silver with Hydrous Lead Dioxide

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Abstract

A simple method for reconcentration and separation of trace amounts of bismuth(III) in the presence of large amounts of silver(I) was established by filtration through a membrane filter loaded with hydrous lead di ox ide(HLD), which adsorbed 5-10 µ g of bismuth(III). Bismuth(III) was not affected by the presence of 5-10 g of silver(I) at pH 1, because the adsorption of silver(I) on the HLD occurred at a pH above 2. This method is applicable to the determination of bismuth in high purity silver.

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Authors and Affiliations

  1. Department of Chemistry, Faculty of Science and Engineering, Ritsumeikan University, Kita-ku, Kyoto-shi, Kyoto, 603, Japan

    Toshio Matsuda & Toyoshi Nagai

Authors
  1. Toshio Matsuda
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  2. Toyoshi Nagai
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Matsuda, T., Nagai, T. Preconcentration and Separation of Trace Amounts of Bismuth in High Purity Silver with Hydrous Lead Dioxide. ANAL. SCI. 7 (Suppl 1), 75–78 (1991). https://doi.org/10.2116/analsci.7.Supple_75

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  • DOI: https://doi.org/10.2116/analsci.7.Supple_75

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