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

Mohammed Zidan; Weetee Tan; Abdul Halim Abdullah; Zulkarnain Zainal; Joo Kheng Goh

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

Mohammed Zidan, Weetee Tan, Abdul Halim Abdullah, Zulkarnain Zainal, Joo Kheng Goh

Research output: Contribution to journal › Article › Research › peer-review

Abstract

Use of a lithium doped bismuth oxide and multi-walled carbon nanotubes modified glassy carbon electrode (Bi₂O₃/Li ⁺/CNT/GC) enhance the oxidation current of paracetamol during cyclic voltammetry compared to bare glassy carbon electrode and (Bi₂O ₃/Li⁺/CNT) modified electrode. Peak potential was observed to shift slightly to less positive value by about 220 mV and current was significantly enhanced by about 3.2 folds. The sensitivity under conditions of cyclic voltammetry is significantly dependent on pH, temperature and scan rate. Calibration plot reveals linearity from the range 5.0 × 10^-7-2 × 10^-3 M with a correlation coefficient of 0.998. The detection limit was estimated to be 7.4 × 10^-7 M. Practically; Bi ₂O₃/CNT modified electrode could be used for the determination of parecetamol in tablet samples.

Original language	English
Pages (from-to)	3029-3032
Number of pages	4
Journal	Asian Journal of Chemistry
Volume	23
Issue number	7
Publication status	Published - 2011

Keywords

BiO/MWCNT composite
Cyclic voltammetry
Electrocataysis
Modified GCE
Paracetamol

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Cite this

@article{e362cfef60ca4a17aa5f454d11d3e54e,

title = "Electrocatalytic oxidation of paracetamol mediated by lithium doped microparticles Bi2O3/MWCNT modified electrode",

abstract = "Use of a lithium doped bismuth oxide and multi-walled carbon nanotubes modified glassy carbon electrode (Bi2O3/Li +/CNT/GC) enhance the oxidation current of paracetamol during cyclic voltammetry compared to bare glassy carbon electrode and (Bi2O 3/Li+/CNT) modified electrode. Peak potential was observed to shift slightly to less positive value by about 220 mV and current was significantly enhanced by about 3.2 folds. The sensitivity under conditions of cyclic voltammetry is significantly dependent on pH, temperature and scan rate. Calibration plot reveals linearity from the range 5.0 × 10-7-2 × 10-3 M with a correlation coefficient of 0.998. The detection limit was estimated to be 7.4 × 10-7 M. Practically; Bi 2O3/CNT modified electrode could be used for the determination of parecetamol in tablet samples.",

keywords = "BiO/MWCNT composite, Cyclic voltammetry, Electrocataysis, Modified GCE, Paracetamol",

author = "Mohammed Zidan and Weetee Tan and Abdullah, {Abdul Halim} and Zulkarnain Zainal and Goh, {Joo Kheng}",

year = "2011",

language = "English",

volume = "23",

pages = "3029--3032",

journal = "Asian Journal of Chemistry",

issn = "0970-7077",

publisher = "Chemic Publishing Company",

number = "7",

}

TY - JOUR

T1 - Electrocatalytic oxidation of paracetamol mediated by lithium doped microparticles Bi2O3/MWCNT modified electrode

AU - Zidan, Mohammed

AU - Tan, Weetee

AU - Abdullah, Abdul Halim

AU - Zainal, Zulkarnain

AU - Goh, Joo Kheng

PY - 2011

Y1 - 2011

N2 - Use of a lithium doped bismuth oxide and multi-walled carbon nanotubes modified glassy carbon electrode (Bi2O3/Li +/CNT/GC) enhance the oxidation current of paracetamol during cyclic voltammetry compared to bare glassy carbon electrode and (Bi2O 3/Li+/CNT) modified electrode. Peak potential was observed to shift slightly to less positive value by about 220 mV and current was significantly enhanced by about 3.2 folds. The sensitivity under conditions of cyclic voltammetry is significantly dependent on pH, temperature and scan rate. Calibration plot reveals linearity from the range 5.0 × 10-7-2 × 10-3 M with a correlation coefficient of 0.998. The detection limit was estimated to be 7.4 × 10-7 M. Practically; Bi 2O3/CNT modified electrode could be used for the determination of parecetamol in tablet samples.

AB - Use of a lithium doped bismuth oxide and multi-walled carbon nanotubes modified glassy carbon electrode (Bi2O3/Li +/CNT/GC) enhance the oxidation current of paracetamol during cyclic voltammetry compared to bare glassy carbon electrode and (Bi2O 3/Li+/CNT) modified electrode. Peak potential was observed to shift slightly to less positive value by about 220 mV and current was significantly enhanced by about 3.2 folds. The sensitivity under conditions of cyclic voltammetry is significantly dependent on pH, temperature and scan rate. Calibration plot reveals linearity from the range 5.0 × 10-7-2 × 10-3 M with a correlation coefficient of 0.998. The detection limit was estimated to be 7.4 × 10-7 M. Practically; Bi 2O3/CNT modified electrode could be used for the determination of parecetamol in tablet samples.

KW - BiO/MWCNT composite

KW - Cyclic voltammetry

KW - Electrocataysis

KW - Modified GCE

KW - Paracetamol

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M3 - Article

AN - SCOPUS:79955534599

VL - 23

SP - 3029

EP - 3032

JO - Asian Journal of Chemistry

JF - Asian Journal of Chemistry

SN - 0970-7077

IS - 7

ER -