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Radiochemical solvent extraction method for the determination of Cd and Hg using thionalide as a single reagent

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Abstract

A radiochemical solvent extraction method has been developed for the simultaneous determination of submicrogram amounts of Cd and Hg using115mCd and203Hg tracers respectively and thionalide as a single complexing reagent. Hg was determined by 0.05% thionalide in ethyl methyl ketone (EMK) at pH 8.5, masking Cd with 0.1M KCN. From the aqueous phase Cd was demasked using formal-dehyde-acetic acid, pH adjusted to 9.5 and extracted into 0.05% thionalide in chloroform. The method is simple, fast and yields accurate results.

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Authors and Affiliations

  1. Department of Chemistry, Nagpur University, 440 010, Nagpur, India

    A. N. Garg

  2. Department of Chemistry, University of Kentucky, 40506-0055, Lexington, Ky, USA

    D. L. Samudralwar

Authors
  1. D. L. Samudralwar
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  2. A. N. Garg
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Samudralwar, D.L., Garg, A.N. Radiochemical solvent extraction method for the determination of Cd and Hg using thionalide as a single reagent. Journal of Radioanalytical and Nuclear Chemistry Letters 165, 229–241 (1992). https://doi.org/10.1007/BF02164762

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  • DOI: https://doi.org/10.1007/BF02164762

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