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    Simultaneous electrochemical detection of the catecholamines and ascorbic acid at PEDOT/S-beta-CD modified gold electrodes


    Colleran, John and Breslin, Carmel B. (2012) Simultaneous electrochemical detection of the catecholamines and ascorbic acid at PEDOT/S-beta-CD modified gold electrodes. Journal of Electroanalytical Chemistry, 667. pp. 30-37. ISSN 1572-6657

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    Abstract

    Poly (3,4-ethylene dioxythiophene)/sulphated β-cyclodextrin (PEDOT/S-β-CD) films, deposited onto gold working electrodes, were investigated for ascorbic acid (AA) and catecholamine detection using cyclic voltammetry, hydrodynamic voltammetry and amperometry. The thin PEDOT/S-β-CD films were fabricated via three electropolymerisation cyclic voltammetry cycles, on gold working macroelectrodes. A limit of detection (LoD) of 1.3×10⁻⁷M was determined at PEDOT/S-β-CD modified gold electrodes, via cyclic voltammetry, for dopamine (DA) in the presence of 1×10⁻³M of AA in human urine samples.

    Item Type: Article
    Keywords: PEDOT; Sulfonated-β-CD; Dopamine; Ascorbic acid; Simultaneous detection; Tumour diagnosis;
    Academic Unit: Faculty of Science and Engineering > Chemistry
    Item ID: 7901
    Identification Number: https://doi.org/10.1016/j.jelechem.2011.12.020
    Depositing User: Dr. Carmel Breslin
    Date Deposited: 10 Feb 2017 17:13
    Journal or Publication Title: Journal of Electroanalytical Chemistry
    Publisher: Elsevier
    Refereed: Yes
    Funders: Enterprise Ireland (EI), National Development Plan, European Union
    URI:

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