Determination of rhenium in mineral raw materials by stripping voltammetry

Abstract

The studies on the electropreconcentration of ReO ₄^- from 1 M HNO₃ solutions have shown that, at -0.8 V, ReO ₄^- is reduced to ReO₂ and Re⁰ at the surface of an impregnated graphite electrode. Two anodic peaks were observed in the voltammogram of the electrooxidation of the deposit obtained. The conditions for the adsorption isolation of ReO ₄^- on activated carbon from a complex matrix containing Mo(VI), W(VI), Cu(II), Ag(I), and Au(III) were selected. To intensify the adsorption, the solutions are irradiated with UV. A procedure for determining rhenium in mineral ores and naturally occurring samples was proposed.

Original language	English
Pages (from-to)	377-381
Number of pages	5
Journal	Journal of Analytical Chemistry
Volume	62
Issue number	4
DOIs	https://doi.org/10.1134/S1061934807040156 https://doi.org/10.1134/S1061934807040156
Publication status	Published - Apr 2007

ASJC Scopus subject areas

Analytical Chemistry

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Kolpakova, N. A., & Gol'ts, L. G. (2007). Determination of rhenium in mineral raw materials by stripping voltammetry. Journal of Analytical Chemistry, 62(4), 377-381. https://doi.org/10.1134/S1061934807040156, https://doi.org/10.1134/S1061934807040156

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abstract = "The studies on the electropreconcentration of ReO 4- from 1 M HNO3 solutions have shown that, at -0.8 V, ReO 4- is reduced to ReO2 and Re0 at the surface of an impregnated graphite electrode. Two anodic peaks were observed in the voltammogram of the electrooxidation of the deposit obtained. The conditions for the adsorption isolation of ReO 4- on activated carbon from a complex matrix containing Mo(VI), W(VI), Cu(II), Ag(I), and Au(III) were selected. To intensify the adsorption, the solutions are irradiated with UV. A procedure for determining rhenium in mineral ores and naturally occurring samples was proposed.",

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AU - Kolpakova, N. A.

AU - Gol'ts, L. G.

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AB - The studies on the electropreconcentration of ReO 4- from 1 M HNO3 solutions have shown that, at -0.8 V, ReO 4- is reduced to ReO2 and Re0 at the surface of an impregnated graphite electrode. Two anodic peaks were observed in the voltammogram of the electrooxidation of the deposit obtained. The conditions for the adsorption isolation of ReO 4- on activated carbon from a complex matrix containing Mo(VI), W(VI), Cu(II), Ag(I), and Au(III) were selected. To intensify the adsorption, the solutions are irradiated with UV. A procedure for determining rhenium in mineral ores and naturally occurring samples was proposed.

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