Electrochemically initiated 1,4-nucleophilic substitutions: A general strategy for the analytical detection of hydrogen sulfide

NS Lawrence, J Davis, L Jiang, TGJ Jones, SN Davies, RG Compton

    Research output: Contribution to journalArticle

    28 Citations (Scopus)

    Abstract

    The reaction of electrochemically generated quinoid derivatives with sulfide has been investigated as a method of detecting the latter. Five structurally and functionally diverse precursor compounds (catechol, dopamine. hydroquinone. p-aminophenol and N,N-dimethylphenylene-1,4-diamine) were assessed as potential electrochemical indicators for aqueous sulfide. Each derivative is capable of forming a quinoid intermediate upon oxidation and all were found to respond to increasing concentrations of sulfide in pH 4 buffer (typically over a range extending from 10-300 muM sulfide). A number of strategies for relating the observed electrochemical signal to the concentration of sulfide are presented. The relative merits of each system are discussed and their analytical parameters (linear range, detection limits, redo?: potentials etc.) tabulated for ease of comparison.
    LanguageEnglish
    Pages432-436
    JournalElectroanalysis
    Volume13
    Issue number6
    Publication statusPublished - Apr 2001

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    Hydrogen Sulfide
    Sulfides
    Substitution reactions
    Derivatives
    Diamines
    Dopamine
    Buffers
    Oxidation

    Cite this

    Lawrence, NS ; Davis, J ; Jiang, L ; Jones, TGJ ; Davies, SN ; Compton, RG. / Electrochemically initiated 1,4-nucleophilic substitutions: A general strategy for the analytical detection of hydrogen sulfide. In: Electroanalysis. 2001 ; Vol. 13, No. 6. pp. 432-436.
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    abstract = "The reaction of electrochemically generated quinoid derivatives with sulfide has been investigated as a method of detecting the latter. Five structurally and functionally diverse precursor compounds (catechol, dopamine. hydroquinone. p-aminophenol and N,N-dimethylphenylene-1,4-diamine) were assessed as potential electrochemical indicators for aqueous sulfide. Each derivative is capable of forming a quinoid intermediate upon oxidation and all were found to respond to increasing concentrations of sulfide in pH 4 buffer (typically over a range extending from 10-300 muM sulfide). A number of strategies for relating the observed electrochemical signal to the concentration of sulfide are presented. The relative merits of each system are discussed and their analytical parameters (linear range, detection limits, redo?: potentials etc.) tabulated for ease of comparison.",
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    Electrochemically initiated 1,4-nucleophilic substitutions: A general strategy for the analytical detection of hydrogen sulfide. / Lawrence, NS; Davis, J; Jiang, L; Jones, TGJ; Davies, SN; Compton, RG.

    In: Electroanalysis, Vol. 13, No. 6, 04.2001, p. 432-436.

    Research output: Contribution to journalArticle

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    AU - Lawrence, NS

    AU - Davis, J

    AU - Jiang, L

    AU - Jones, TGJ

    AU - Davies, SN

    AU - Compton, RG

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    N2 - The reaction of electrochemically generated quinoid derivatives with sulfide has been investigated as a method of detecting the latter. Five structurally and functionally diverse precursor compounds (catechol, dopamine. hydroquinone. p-aminophenol and N,N-dimethylphenylene-1,4-diamine) were assessed as potential electrochemical indicators for aqueous sulfide. Each derivative is capable of forming a quinoid intermediate upon oxidation and all were found to respond to increasing concentrations of sulfide in pH 4 buffer (typically over a range extending from 10-300 muM sulfide). A number of strategies for relating the observed electrochemical signal to the concentration of sulfide are presented. The relative merits of each system are discussed and their analytical parameters (linear range, detection limits, redo?: potentials etc.) tabulated for ease of comparison.

    AB - The reaction of electrochemically generated quinoid derivatives with sulfide has been investigated as a method of detecting the latter. Five structurally and functionally diverse precursor compounds (catechol, dopamine. hydroquinone. p-aminophenol and N,N-dimethylphenylene-1,4-diamine) were assessed as potential electrochemical indicators for aqueous sulfide. Each derivative is capable of forming a quinoid intermediate upon oxidation and all were found to respond to increasing concentrations of sulfide in pH 4 buffer (typically over a range extending from 10-300 muM sulfide). A number of strategies for relating the observed electrochemical signal to the concentration of sulfide are presented. The relative merits of each system are discussed and their analytical parameters (linear range, detection limits, redo?: potentials etc.) tabulated for ease of comparison.

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