引用本文:
汪振辉, 张玲玲. 超薄碳糊电极的电化学性质及其应用[J]. 应用化学,
2006, 23(5): 528-532.
Citation: WANG Zhen-Hui, ZHANG Ling-Ling. Electrochemical Behavior of Super-thin Carbon Paste Electrode and Its Analytical Application[J]. Chinese Journal of Applied Chemistry, 2006, 23(5): 528-532.
Citation: WANG Zhen-Hui, ZHANG Ling-Ling. Electrochemical Behavior of Super-thin Carbon Paste Electrode and Its Analytical Application[J]. Chinese Journal of Applied Chemistry, 2006, 23(5): 528-532.
超薄碳糊电极的电化学性质及其应用
English
Electrochemical Behavior of Super-thin Carbon Paste Electrode and Its Analytical Application
Abstract:
A novel nano-thickness carbon paste film electrode(INCPE) was constructed by inlaying carbon paste onto the surface of a nickel-chromium substrate.The surface structure of the INCPE was characterized by scanning electron microscopy(SEM), and the electrochemical behavior of the electrode was investigated by cyclic voltammetry,differential pulse voltammetry and multi-step semi-differential electrochemical method with vitamin B6 as the reactant.Vitamin B6 showed a very sensitive response at INCPE.In a phosphate buffer solution (pH=6.7), the oxidation peak current was proportional to the concentration of vitamin B6 in the range of 1.0×10-7~2.0×10-4 mol/L with a correlation coefficient of 0.995 2.The detection limit of vitamin B6 was 7.0×10-8 mol/L(N/S=3).These results confirm that INCPE is stable,sensitive,inexpensive,convenient,and could be used as a working electrode.
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Key words:
- nanostructure carbon paste film
- / voltammetry
- / inlaid electrode
- / vitamin B6
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