Complex formation of thiocyanate ions with iron(III) on the solid phase of fibrous ion exchangers
- Authors: Shvoeva O.P.1, Dedkova V.P.1, Grechnikov A.A.1
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Affiliations:
- Vernadsky Institute of Geochemistry and Analytical Chemistry
- Issue: Vol 72, No 5 (2017)
- Pages: 542-545
- Section: Articles
- URL: https://journals.rcsi.science/1061-9348/article/view/182445
- DOI: https://doi.org/10.1134/S1061934817030121
- ID: 182445
Cite item
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–, SO42- and NO3- 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.
About the authors
O. P. Shvoeva
Vernadsky Institute of Geochemistry and Analytical Chemistry
Email: DedVa@yandex.ru
Russian Federation, Moscow, 119991
V. P. Dedkova
Vernadsky Institute of Geochemistry and Analytical Chemistry
Author for correspondence.
Email: DedVa@yandex.ru
Russian Federation, Moscow, 119991
A. A. Grechnikov
Vernadsky Institute of Geochemistry and Analytical Chemistry
Email: DedVa@yandex.ru
Russian Federation, Moscow, 119991