Anthraquinone-derivatised carbon powder: reagentless voltammetric pH electrodes

Gregory G. Wildgoose, Malingappagari Pandurangappa, Nathan S. Lawrence, Li Jiang, Timothy G. J. Jones, Richard G. Compton

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    Abstract

    A simple pH probe is developed based upon the covalent chem. derivatization of carbon particles with anthraquinone. The amperometric response of electrodes constructed from this material is examd. and shown to produce a Nernstian linear response to pH from 1 to 9, over a range of temps. from 20 to 70°, consistent with a two-electron, two-proton electrochem. process. [on SciFinder(R)]
    Original languageEnglish
    Pages (from-to)887-893
    Number of pages7
    JournalTalanta
    Volume60
    Issue number5
    Early online date8 Apr 2003
    DOIs
    Publication statusPublished - 27 Jul 2003

    Keywords

    • anthraquinone derivatized carbon powder
    • reagentless voltammetric pH electrode

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