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Voltammetric stripping analysis of metal concentrates with polymers soluble in aqueous solutions

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Abstract

The conditions were worked out for the simultaneous stripping voltammetric determination of components of the ternary Pb(II)-Cu(II)-Cd(II) and binary Ag(I)-Cu(II) systems at a carbon-paste electrode in 2% aqueous solutions of the water soluble polymer polyethyleneimine (PEI) and its thiourea-containing derivative (TU-PEI). Water-soluble polymers are shown to reduce the mutual effects of the components of the binary and ternary system at the electrode surface. The different complex stability of Ag(I), Pb(II) or Cd(II) and Cu(II) with PEI and TU-PEI allows Ag(I), Pb(II) and Cd(II) to be determined in the presence of a large excess of Cu(II).

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Authors and Affiliations

  1. Department of Chemistry, Moscow State University, 119 899 Moscow, Russia, , , , , , RU

    E. A. Osipova, V. E. Sladkov & A. I. Kamenev

  2. Institute of Geochemistry and Analytical Chemistry, RAS, Moscow, Russia, , , , , , RU

    V. M. Shkinev

Authors
  1. E. A. Osipova
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  2. V. E. Sladkov
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  3. A. I. Kamenev
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  4. V. M. Shkinev
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Received: 17 July 1997 / Revised: 1 December 1997 / Accepted: 3 December 1997

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Osipova, E., Sladkov, V., Kamenev, A. et al. Voltammetric stripping analysis of metal concentrates with polymers soluble in aqueous solutions. Fresenius J Anal Chem 361, 311–313 (1998). https://doi.org/10.1007/s002160050891

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  • DOI: https://doi.org/10.1007/s002160050891

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