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Complex formation of thiocyanate ions with iron(III) on the solid phase of fibrous ion exchangers

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Abstract

Characteristics of complex formation of SCN–-ions with iron(III) on fibrous materials filled with an AV-17 anion exchanger (PANV–AV-17) and a KU-2 cation exchanger (PANV–KU-2) are studied by diffuse reflection spectroscopy. Sorption conditions of thiocyanate ions on PANV–AV-17 in the dynamic mode and the influence of concentrations of Cl–, SO 2-4 and NO -3 on the sorption and analytical signals of thiocyanate complexes are studied. Sorption conditions of iron(III) on PANV–KU-2 and the conditions of formation of thiocyanate complexes are studied. Systems for the sorption–spectroscopic determination of 0.1–0.7 μg/mL of SCN–-ions in aqueous solutions of pH 5 ± 1 on PANV–AV-17 and test-determination of 5–30 μg of SCN–-ions on PANV–KU-2 are proposed.

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Authors and Affiliations

  1. Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences, Moscow, 119991, Russia

    O. P. Shvoeva, V. P. Dedkova & A. A. Grechnikov

Authors
  1. O. P. Shvoeva
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  2. V. P. Dedkova
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  3. A. A. Grechnikov
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Correspondence to V. P. Dedkova.

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Original Russian Text © O.P. Shvoeva, V.P. Dedkova, A.A. Grechnikov, 2017, published in Zhurnal Analiticheskoi Khimii, 2017, Vol. 72, No. 5, pp. 472–475.

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Shvoeva, O.P., Dedkova, V.P. & Grechnikov, A.A. Complex formation of thiocyanate ions with iron(III) on the solid phase of fibrous ion exchangers. J Anal Chem 72, 542–545 (2017). https://doi.org/10.1134/S1061934817030121

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  • DOI: https://doi.org/10.1134/S1061934817030121

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