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    Simultaneous determination of dopamine, ascorbic acid and uric acid with electrospun carbon nanofibers modified electrode

    Access Status
    Fulltext not available
    Authors
    Liu, Yang
    Huang, J.
    Hou, H.
    You, T.
    Date
    2008
    Type
    Journal Article
    
    Metadata
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    Citation
    Liu, Yang and Huang, Jianshe and Hou, Haoqing and You, Tianyan. 2008. Simultaneous determination of dopamine, ascorbic acid and uric acid with electrospun carbon nanofibers modified electrode. Electrochemistry Communications. 10 (10): pp. 1431-1434.
    Source Title
    Electrochemistry Communications
    DOI
    10.1016/j.elecom.2008.07.020
    ISSN
    1388-2481
    URI
    http://hdl.handle.net/20.500.11937/36322
    Collection
    • Curtin Research Publications
    Abstract

    A novel carbon-nanofiber-modified carbon-paste electrode (CNF-CPE) was employed for the simultaneous determination of dopamine (DA), ascorbic acid (AA) and uric acid (UA) with good selectivity and high sensitivity. The CNFs were prepared by combination of electrospinning technique with thermal treatment method and were used without any pretreatment. In application to determination of DA, AA and UA in the ternary mixture, the pristine CNF-CPE exhibited well-separated differential pulse voltammetric peaks with high catalytic current. Low detection limits of 0.04 µM, 2 µM and 0.2 µM for DA, AA and UA were obtained, with the linear calibration curves over the concentration range 0.04–5.6 µM, 2–64 µM and 0.8–16.8 µM, respectively.

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