Abstract
The application of square wave voltammetry (SWV) for the routine determination of six elements has been examined and optimized. Square wave voltammetry is more sensitive for the determination of Zn, Ni and Co in comparison with differential pulse anodic stripping voltammetry (DPASV). For Cd and Pb, no significant improvement in sensitivity was observed. At Cu concentrations < 1 μg 1 −1, only DPASV can lead to satisfactory results. The great advantage of SWV is the shortening of the determination time for Zn, Cd, Pb and Cu, which is only half the time needed by DPASV and similar to the time needed for the determination of one element by ET AAS.
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