Anodic stripping voltammetric determination of heavy metals in solutions containing humic acids |
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| Authors: | J Labuda D Saur and R Neeb |
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| Institution: | (1) Department of Analytical Chemistry, Slovak Technical University, SK-83712 Bratislava, Slovakia;(2) Institute of Inorganic and Analytical Chemistry, Johannes-Gutenberg University, J. Becher-Weg, D-55128 Mainz, Germany |
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| Abstract: | Summary Various simultaneous effects of humic acids on the current and potential of differential pulse anodic stripping peaks of copper, lead, cadmium and zinc in weakly alkaline and acidic (pH 2) solutions have been investigated and interpreted with regard to metal complexation and the adsorption of humic acid on the mercury electrode. The applicability of the standard additions method for metal quantitation and the experimental conditions for UV-photolysis with a high-pressure mercury lamp have been examined in model as well as real water samples. |
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