A selective voltammetric detection for dopamine using poly (gallic acid) film modified electrode

作者：Song, Wei; Chen, Yu; Xu, Juan; Tian, Dan Bi^*

来源：Chinese Chemical Letters, 2010, 21(3): 349-352.

DOI：10.1016/j.cclet.2009.10.008

• Dopamine
• Ascorbic acid
• Gallic acid
• Electropolymerization
• Modified electrode

The electrochemistry behavior of dopamine was investigated by cyclic voltammetry and differential pulse voltammetry at a poly (gallic acid) film modified glassy carbon electrode. Two electrons and two protons participated in the diffusion-controlled electrocatalytic oxidation of dopamine with a diffusion coefficient of 2.186 x 10(-5) cm(2)/s. The interference of ascorbic acid with the determination of dopamine could be efficiently eliminated. This work provided a simple approach to selectively and sensitively detect dopamine in the presence of high concentration of ascorbic acid.

• 出版日期2010-3
• 单位南京工业大学