Determination of gold in leach liquors by anodic stripping voltammetry in non-aqueous medium |
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Authors: | Karel Jakubec Zdeněk Šír |
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Affiliation: | Institute of Chemical Process Fundamentals, Czechoslovak Academy of Sciences, Rozvojová 135, 165 02 Prague 6 — Suchdol Czechoslovakia |
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Abstract: | The anodic stripping voltammetry of gold in butyl acetate/methanol (2 + 1) mixture is reported. The tetrachloroaurate(III) complex is extracted into butyl acetate, lithium perchlorate in methanol is added, and gold is deposited on a glassy carbon rotating disk cathode at ?0.6 V vs. SCE. The deposited gold is stripped in the same medium at a scan rate of 50 mV s?1. The method is suitable for the determination of gold (0.1–1 mg l?1) in chloride leach liquors. |
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