UPM Institutional Repository

Electrodeposition of poly(3,4-ethylenedioxythiophene)/reduced graphene oxide/manganese dioxide for simultaneous detection of uric acid, dopamine and ascorbic acid


Citation

Tukimin, Nurulkhalilah and Abdullah, Jaafar and Sulaiman, Yusran (2018) Electrodeposition of poly(3,4-ethylenedioxythiophene)/reduced graphene oxide/manganese dioxide for simultaneous detection of uric acid, dopamine and ascorbic acid. Journal of Electroanalytical Chemistry, 820. 74 - 81. ISSN 1572-6657

Abstract

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 (∆Ep) 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 μM with a linear response of 1–800, 0.03–45 and 0.3–80 μM were obtained for AA, DA and UA, respectively. This sensor also showed an excellent stability (reproducibility and repeatability).


Download File

[img] Text
Electrodeposition of poly.pdf

Download (72kB)

Additional Metadata

Item Type: Article
Divisions: Faculty of Science
Institute of Advanced Technology
DOI Number: https://doi.org/10.1016/j.jelechem.2018.04.065
Publisher: Elsevier
Keywords: Reduced graphene oxide; Manganese dioxide; PEDOT; Simultaneous detection; Uric acid; Dopamine and ascorbic acid
Depositing User: Nurul Ainie Mokhtar
Date Deposited: 23 Oct 2020 09:40
Last Modified: 23 Oct 2020 09:41
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/j.jelechem.2018.04.065
URI: http://psasir.upm.edu.my/id/eprint/72546
Statistic Details: View Download Statistic

Actions (login required)

View Item View Item