Simultaneous determination of trace amounts of zinc, lead and copper in rum by anodic stripping voltammetry.

摘要: Abstract The determination of traces Zn, Pb and Cu in rum samples by anodic stripping voltammetry without previous treatment or addition a supporting electrolyte, using hanging mercury drop electrode, is described. choice an appropriate voltammetric method deposition potential minimizes the influence organic content ensures good reproductibility measurements. reliability was tested comparing results with those given absorption spectrometry, differences being about 10%. allows heavy metal ions to be determined μg l−1 concentration range.