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    Study of the Effects of Nonlinear Potential Sweeps on Voltammetry

    Access Status
    Fulltext not available
    Authors
    Ogurtsov, V.
    Beni, V.
    Strutwolf, J.
    Arrigan, Damien
    Date
    2009
    Type
    Journal Article
    
    Metadata
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    Citation
    Ogurtsov, V. and Beni, V. and Strutwolf, J. and Arrigan, D. 2009. Study of the Effects of Nonlinear Potential Sweeps on Voltammetry. Electroanalysis. 21 (1): pp. 68-76.
    Source Title
    Electroanalysis
    ISSN
    10400397
    URI
    http://hdl.handle.net/20.500.11937/22090
    Collection
    • Curtin Research Publications
    Abstract

    Voltammetric methods use a constant sweep rate during the course of a scan. This paper reports a study of the influence of a nonconstant sweep rate on the voltammetric response. In this approach, either continuously increasing or continuously decreasing potential scan rates can be employed, unlike presently available methods which rely on a constant sweep rate. The voltammetric response of potassium ferrocyanide at a glassy carbon electrode was used as a model system to test the new method. The responses obtained using traditional staircase voltammetry (linear staircase voltammetry) and the new approach (nonlinear staircase voltammetry) were compared by experiment and by simulation. The new approach offers capability for signal enhancement, whereby enhanced current or enhanced peak shape can be obtained by choice of appropriate waveform parameters.

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