高等学校化学学报

高等学校化学学报 ›› 1999, Vol. 20 ›› Issue (S1): 114.

• Electroanalytical Chemistry • 上一篇    下一篇

Voltammetric Determination of Dopamine in the Presence of Ascorbic Acid Using Polycarminic Acid Film Coated Carbon Fiber Cylinder Microelectrode

WAN Qi-Jin, WANG Gang, ZHANG Hai-Li, YU Jiu-Hong, XU Bin   

  1. Department of Chemistry, Hubei Normal University, Huangshi, 435002, P. R. China
  • 出版日期:1999-12-31 发布日期:1999-12-31
  • 基金资助:

    Supported by Hubei Province Education Committee Science Foundation.

Voltammetric Determination of Dopamine in the Presence of Ascorbic Acid Using Polycarminic Acid Film Coated Carbon Fiber Cylinder Microelectrode

WAN Qi-Jin, WANG Gang, ZHANG Hai-Li, YU Jiu-Hong, XU Bin   

  1. Department of Chemistry, Hubei Normal University, Huangshi, 435002, P. R. China
  • Online:1999-12-31 Published:1999-12-31
  • Supported by:

    Supported by Hubei Province Education Committee Science Foundation.

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摘要：

Dopamine ((3,4-dihydroxyphenyl) ethylamine, DA) is an important neurotransmitter in the mammalian central nervous system (CNS). Recently, investigations on the measurement of DA have attracted much attention. Ascorbic acid (AA), however, usually coexists together with DA in mammalian body and their oxidative potential are very close. Therefore, the measurement of DA in vivo is always interfered with AA. In this paper, we reported the polycarminic acid (PCA) film coated carbon fiber cylinder microelectrodes. This film tends to exclude the interference of big anions such as AA but selectively responds to big cations such as DA.

Abstract:

Dopamine ((3,4-dihydroxyphenyl) ethylamine, DA) is an important neurotransmitter in the mammalian central nervous system (CNS). Recently, investigations on the measurement of DA have attracted much attention. Ascorbic acid (AA), however, usually coexists together with DA in mammalian body and their oxidative potential are very close. Therefore, the measurement of DA in vivo is always interfered with AA. In this paper, we reported the polycarminic acid (PCA) film coated carbon fiber cylinder microelectrodes. This film tends to exclude the interference of big anions such as AA but selectively responds to big cations such as DA.

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