Abstract
The effects of changing certain parameters of the applied potential waveform at a dropping mercury electrode (DME) in square-wave voltammetry (s.w.v.) were investigated and compared with theory. Optimum parameters of the waveform are determined for a reversible system, lead(II) in 0.10 M perchloric acid. Current sensitivities for Pb(II) at a static mercury drop electrode by both the integrating and instantaneous current-measurement schemes available in a laboratory computer-based system are compared to those obtained from a commercial instrument suitable for s.w.v. An irreversible system, Ni(II) in 0.10 M HCl, was investigated at the static mercury drop electrode and optimum parameters determined as for Pb(II).
Published Version
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