Determination of zinc in sea-water by anodic stripping voltammetry.
The horizontal distribution of zinc in surface waters from Guanabara Bay has been studied by use of optimized voltammetric techniques and ultraclean working procedures. The non-linearity observed between the peak current for zinc and the electrolysis time, as well as the appearance of a peak at -1.16 V, are discussed. The values found for total zinc in the samples range between 0.3 and 22 mug/l.
de Jesus Alevato
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Departamento de Química, Pontifícia Universidade Católica do Rio de Janeiro, Rio de Janeiro, Brazil.
de Luca Rebello
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