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Determination of vanadium(V) and chromium(VI) in a single sample on a fibrous ion exchanger disk

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Abstract

The determination of vanadium(V) and chromium(VI) in a single sample on a support disk was studied. Polyacrylonitrile fiber filled with an AV-17 anion exchanger was used as a solid phase. After adsorption, the elements were successively detected in the solid phase by color complexation reactions of vanadium with 8-hydroxyquinoline-5-sulfonic acid and chromium with 1.5-diphenylcarbazide. A procedure was developed for the adsorption-spectroscopic determination of 0.04–0.4 μg/mL vanadium(V) and 0.01–0.05 μm/mL chromium(VI) at V: Cr ratios of 1: 1 to 10: 1 in the dynamic mode. The limits of detections for vanadium and chromium were 0.04 and 0.005 μg/mL, respectively. It was shown that the background salt content of potable water had no appreciable effect; no preliminary sample preparation was required.

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Authors and Affiliations

  1. Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences, ul. Kosygina 19, Moscow, 119991, Russia

    V. P. Dedkova, O. P. Shvoeva & S. B. Savvin

Authors
  1. V. P. Dedkova
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  2. O. P. Shvoeva
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  3. S. B. Savvin
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Original Russian Text © V.P. Dedkova, O.P. Shvoeva, S.B. Savvin, 2009, published in Zhurnal Analiticheskoi Khimii, 2009, Vol. 64, No. 4, pp. 365–368.

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Dedkova, V.P., Shvoeva, O.P. & Savvin, S.B. Determination of vanadium(V) and chromium(VI) in a single sample on a fibrous ion exchanger disk. J Anal Chem 64, 350–353 (2009). https://doi.org/10.1134/S1061934809040054

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  • DOI: https://doi.org/10.1134/S1061934809040054

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