The selective detection of dopamine at a polypyrrole film doped with sulfonated β-cyclodextrins

SENSORS AND ACTUATORS B-CHEMICAL

卷:150

Article

Harley, Claire C.¹  Rooney, A. Denise¹  Breslin, Carmel B.¹ 

[1] Natl Univ Ireland Maynooth, Dept Chem, Maynooth, Kildare, Ireland

关键词: Dopamine sensor;    Polypyrrole;    beta-Cyclodextrin;    Ascorbic acid;    Selective detection;   

DOI  :  10.1016/j.snb.2010.09.012

来源: Elsevier

【 摘 要 】

A highly selective dopamine sensor was fabricated by doping polypyrrole with a sulfonated beta-cyclodextnn This composite material enabled the selective sensing of dopamine in the presence of a large excess of ascorbic acid and prevented the regeneration of dopamine through the homogeneous catalytic reaction of the ascorbate anion with the dopamine-o-quinone A single redox wave corresponding to the oxidation of dopamine was observed in dopamine/ascorbate mixtures giving a truly selective dopamine sensor The limit of detection was measured as 3 2 x 10(-6) M for dopamine (C) 2010 Elsevier B V All rights reserved

【 授权许可】

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