A comparison of different types of gold-carbon composite electrode for detection of arsenic(III)

AO Simm, CE Banks, SJ Wilkins, NG Karousos, J Davis, RG Compton

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    Abstract

    A study has been conducted using abrasively modified basal and edge-plane graphite, carbon-paste, and carbon-epoxy electrodes to create gold-carbon composite electrodes. Using either nano or micro-sized gold particles their suitability for use in detecting arsenic(III) is assessed. It was found that gold arrays prepared from micron-sized particles gave the best performance for arsenic detection. In particular micron arrays produced in carbon-paste electrodes with an easily renewable surface work well for detection of arsenic, producing a detection limit of 5(+/-2)x10(-9) mol L-1, with a high sensitivity of 10(+/-0.1) A mol(-1) L.
    LanguageEnglish
    Pages979-985
    JournalAnalytical and Bioanalytical Chemistry
    Volume381
    Issue number4
    DOIs
    Publication statusPublished - Feb 2005

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    Simm, AO ; Banks, CE ; Wilkins, SJ ; Karousos, NG ; Davis, J ; Compton, RG. / A comparison of different types of gold-carbon composite electrode for detection of arsenic(III). In: Analytical and Bioanalytical Chemistry. 2005 ; Vol. 381, No. 4. pp. 979-985.
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    A comparison of different types of gold-carbon composite electrode for detection of arsenic(III). / Simm, AO; Banks, CE; Wilkins, SJ; Karousos, NG; Davis, J; Compton, RG.

    In: Analytical and Bioanalytical Chemistry, Vol. 381, No. 4, 02.2005, p. 979-985.

    Research output: Contribution to journalArticle

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    AU - Banks, CE

    AU - Wilkins, SJ

    AU - Karousos, NG

    AU - Davis, J

    AU - Compton, RG

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