• 文献标题:   Electrodeposition of poly(3,4-ethylenedioxythiophene)/reduced graphene oxide/manganese dioxide for simultaneous detection of uric acid, dopamine and ascorbic acid
  • 文献类型:   Article
  • 作  者:   TUKIMIN N, ABDULLAH J, SULAIMAN Y
  • 作者关键词:   reduced graphene oxide, manganese dioxide, pedot, simultaneous detection, uric acid, dopamine ascorbic acid
  • 出版物名称:   JOURNAL OF ELECTROANALYTICAL CHEMISTRY
  • ISSN:   1572-6657 EI 1873-2569
  • 通讯作者地址:   Univ Putra Malaysia
  • 被引频次:   7
  • DOI:   10.1016/j.jelechem.2018.04.065
  • 出版年:   2018

▎ 摘  要

A simple and sensitive sensor of poly(3,4-ethylenedioxythiophene)/reduced graphene oxide/manganese dioxide modified glassy carbon electrode (PrGO/MnO2) was fabricated via cyclic voltammetry (CV) for simultaneous detection of uric acid (UA), dopamine (DA) and ascorbic acid (AA). The PrGO/MnO2 composite film possessed excellent electrocatalytic rate and high selectivity towards the oxidation of UA, DA and AA in 0.1 M PBS (pH 6.0). The peak potential separation (Delta E-p) of AA-DA, AA-UA and DA-UA were 166, 312 and 146 mV, respectively. The detection limits of 1.00, 0.02 and 0.05 pM with a linear response of 1-800, 0.03-45 and 0.3-80 mu M were obtained for AA, DA and UA, respectively. This sensor also showed an excellent stability (reproducibility and repeatability).