Electrochemical oxidation of paracetamol mediated by zinc oxide modified glassy carbon electrode

Citation

Mohammed Zidan, and Tan, Wee Tee and Abdullah, Abdul Halim and Zainal, Zulkarnain and Goh, Joo Kheng (2010) Electrochemical oxidation of paracetamol mediated by zinc oxide modified glassy carbon electrode. Australian Journal of Basic and Applied Sciences, 4 (12). pp. 6025-6030. ISSN 1991-8178

Abstract

Zinc oxide (ZnO) microparticles have been mechanically attached on the surface of a glassy carbon (GC) electrode. The purpose of this paper is to critically examine the modification of GC electrode with Zinc oxide microparticles and the effect on oxidation of paracetamol in 0.1 M KH2PO4 electrolyte solution by cyclic voltammetry (CV). Excellent electrocatalytic activity towards the oxidation of paracetamol was observed. Peak potential was observed to current was significantly enhanced by about 1.1 folds as compared to bare GC electrode shift slightly to less positive value by about 150 mV and. The sensitivity under conditions of cyclic voltammetry is significantly dependent on pH and scan rate. The variation of scan rate study shows that the system undergoes diffusioncontrolled process. In addition, calibration plot reveals linearity from the range 2.0 × 10-5 to 5.0 × 10-3M with a correlation coefficient of 0.997.

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Additional Metadata

Item Type:	Article
Divisions:	Faculty of Science
Publisher:	American-Eurasian Network for Scientific Information
Keywords:	Cyclic voltammetry; Modified GCE; Paracetamol; Zinc oxide Microcrystalline
Depositing User:	Nur Farahin Ramli
Date Deposited:	17 Mar 2014 03:20
Last Modified:	24 Sep 2018 07:19
URI:	http://psasir.upm.edu.my/id/eprint/24777
Statistic Details:	View Download Statistic

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