Square-wave anodic stripping voltammetry with a mercury-plated reticulated vitreous carbon electrode |
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Authors: | S. Zamponi M. Berrettoni R. Marassi |
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Affiliation: | Dipartimento di Scienze Chimiche, Universitàdi Camerino, 62032 Camerino Italy |
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Abstract: | A rotating mercury-plated reticulated vitreous carbon (RVC) electrode is tested for square-wave anodic stripping voltammetry; RVC provides very large surface areas which are easily plated with mercury. Despite the ill-defined geometry of the electrode, the square-wave stripping peaks are very well defined; their behaviour conforms partly to known theory for square-wave stripping from mercury film electrodes. Fast analytical determinations of lead and cadmium in the μg l?1 range are facilitated by the high efficiency of the preconcentration step and the high sensitivity given by the stripping waveform. |
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