Вольтамперометрическое определение золота на графитовом электроде, модифицированном висмутом

Abstract

The paper considers the possibility of determining the gold (III) by anodic stripping voltammetry on bismuth modified graphite electrode . It is shown that the electrooxidation precipitate bismuth-gold on the current-voltage curve observed anodic peaks electrooxidation bismuth, gold and peak selective electrooxidation bismuth from BiAu2. Determination of bismuth by stripping voltammetry can be carried out from the peak selective electrooxidation of bismuth with gold, and the peak of the gold electrooxidation from the surface graphite electrode. Modification of the graphite electrode by bismuth increases the sensitivity of detection of gold.