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Vol. 27 No. 11 (2015): Vol 27 Issue 11

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Effect of MgB2-MWCNT Modified Glassy Carbon Electrode on Voltammetric Measurements of Dopamine

https://doi.org/10.14233/ajchem.2015.19041
D. Banan
Department of Chemistry, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
W.T. Tan
Department of Chemistry, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
Y. Sulaiman
Department of Chemistry, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia; Functional Device Laboratory, Institute of Advanced Technology, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia

Corresponding Author(s) : Y. Sulaiman

yusran@upm.edu.my

Asian Journal of Chemistry, Vol. 27 No. 11 (2015): Vol 27 Issue 11

Abstract

The effect of glassy carbon electrode modified with magnesium boride-multiwalled carbon nanotube (MgB2-MWCNT) prepared via mechanical attachment method was studied on the redox reaction of dopamine using cyclic voltammetry and chronocoulometry technique. Cyclic voltammogram showed a 1.9 fold enhancement of the dopamine oxidation peak current at the surface of the modified electrode and the current was due to diffusion process. It was also observed that the sensitivity of the modified electrode is significantly dependent on electrolyte, pH and scan rate.

Keywords

Dopamine Cyclic voltammetry Glassy carbon electrode Magnesium boride Multi-walled carbon nanotube
Banan, D., Tan, W., & Sulaiman, Y. (2015). Effect of MgB2-MWCNT Modified Glassy Carbon Electrode on Voltammetric Measurements of Dopamine. Asian Journal of Chemistry, 27(11), 3993–3997. https://doi.org/10.14233/ajchem.2015.19041
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