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Electrocatalytic oxidation of paracetamol mediated by lithium doped microparticles Bi2O3/MWCNT modified electrode.


Citation

Mohammed Zidan, and Tan, Wee Tee and Abdullah, Abdul Halim and Zainal, Zulkarnain and Goh, Joo Kheng (2011) Electrocatalytic oxidation of paracetamol mediated by lithium doped microparticles Bi2O3/MWCNT modified electrode. Asian Journal of Chemistry, 23 (7). pp. 3029-3032. ISSN 0970-7077

Abstract

Use of a lithium doped bismuth oxide and multi-walled carbon nanotubes modified glassy carbon electrode (Bi2O3/Li+ /CNT/GC) enhancethe oxidation current of paracetamol during cyclic voltammetry compared to bare glassy carbon electrode and (Bi2O3 /Li+ /CNT) modifiedelectrode. Peak potential was observed to shift slightly to less positive value by about 220 mV and current was significantly enhanced byabout 3.2 folds. The sensitivity under conditions of cyclic voltammetry is significantly dependent on pH, temperature and scanrate.Calibrationplot reveals linearity from the range 5.0 × 10-7-2 × 10-3M with a correlation coefficient of 0.998. The detection limit was estimated to be7.4 × 10 -7M. Practically; Bi2O3 /CNT modified electrode could be used for the determination of parecetamol in tablet samples.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Science
Publisher: Chemical Publishing Co.
Keywords: Electrocataysis; Bi2O3 /MWCNT composite; Modified GCE; paracetamol; Cyclic Voltammetry.
Depositing User: Nur Farahin Ramli
Date Deposited: 17 Mar 2014 03:44
Last Modified: 19 Oct 2015 23:36
URI: http://psasir.upm.edu.my/id/eprint/24778
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