Potentiometric detection of thiols: a mechanistic evaluation of quinone-thiol interactions

A Digga, S Gracheva, C Livingstone, J Davis

    Research output: Contribution to journalArticle

    26 Citations (Scopus)

    Abstract

    The potentiometric response resulting from the sequential addition of reduced thiols to a benzoquinone/hydroquinone couple has been investigated. The system has been shown to offer a simple route through which thiol could be quantified but a discrepancy in the reaction stoichiometry between glutathione and cysteine was observed. A mechanistic appraisal of the quinone-thiol interactions has been conducted and the proposed reaction pathways corroborated by spectroscopic analysis. (C) 2003 Published by Elsevier B.V.
    Original languageEnglish
    Pages (from-to)732-736
    JournalElectrochemistry Communications
    Volume5
    Issue number8
    DOIs
    Publication statusPublished - Aug 2003

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