Differential pulse anodic stripping voltammetry at the wall-jet electrode |
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| Affiliation: | 1. Department of Chemical Sciences, University of Johannesburg, Doornfontein Campus, P.O. Box 17011, Johannesburg 2028, South Africa;2. Department of Science and Innovation-National Research Foundation South African Research Chair Initiative (DSI-NRF SARChI) in Nanotechnology for Water, University of Johannesburg, Doornfontein 2028, South Africa;3. DSI/Mintek Nanotechnology Innovation Centre, University of Johannesburg, Doornfontein 2028, South Africa;1. Department of Chemical Sciences, University of Johannesburg, Doornfontein Campus, P.O. Box 17011, Doornfontein 2028, South Africa;3. DST/Mintek Nanotechnology Innovation Centre, University of Johannesburg, Doornfontein 2028, South Africa |
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| Abstract: | Differential pulse anodic stripping voltammetry at the wall-jet electrode requires careful consideration of flow conditions in the plating and stripping steps as well as the electrochemical parameters such as modulation amplitude and clock period. A systematic appraisal of the various factors affecting the differential pulse stripping current is described. Although the stripping current depends on the stripping solution flow rate, the differential pulse mode is preferred to dc stripping because of its greater sensitivity and the abililty to obviate oxygen interference. |
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