Multi-Walled Carbon Nanotubes/Vitamin B12 Modified Glassy Carbon Electrode for Determination of P-hydroxyacetophenone

Author(s): Xiaojing Si, Ting Wang, Yaping Ding, Bingdi Liu, Liqiang Luo

Journal Name: Current Analytical Chemistry

Volume 11 , Issue 3 , 2015


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Abstract:

In this study, multi-walled carbon nanotubes (MWCNTs) and vitamin B12 (VB12) were fabricated on the surface of glassy carbon electrode (GCE). This modified electrode (MWCNTs/VB12/GCE) was designed to determine p-hydroxyacetophenone (p-HYD) by square wave voltammetry. The MWCNTs/VB12 film was characterized by Electrochemical impedance spectroscopy and Fourier transform infrared spectroscopy, which exhibited excellent electrocatalytic activity toward p-HYD by using square wave voltammetry. The peak current was linear with the concentration of p-HYD over the range of 0.5 - 250 µM with the detection limit of 0. 15 µM (S/N = 3). Furthermore, this proposed sensor has also demonstrated good reproducibility, high stability and excellent anti-interference ability.

Keywords: Multi-walled carbon nanotubes, P-hydroxyacetophenone, square wave voltammetry, vitamin B12.

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Article Details

VOLUME: 11
ISSUE: 3
Year: 2015
Published on: 17 March, 2015
Page: [211 - 216]
Pages: 6
DOI: 10.2174/1573411011666150317230348
Price: $65

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