Abstract:A mercury film was pre-coated on glassy-carbon electrodes to improve the precision and detection limit of the electrodes in anodic stripping voltammetry. A mixed solution containing 0.1 mg/l Zn 2+ , 0.01 mg/l Pb 2+ , 0.01 mg/l Cd 2+ , and 0.5 mg/l Cu 2+ was used to investigate the simultaneous detection of these ions by the electrode. The influence of the base solution pH and the accumulation time on the electrochemical reactions of Cu 2+ , Zn 2+ , Cd 2+ , and Pb 2+ were investigated, as well as the effect of … Show more
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