Citation: Ling Yan JIANG, Chuan Yin LIU, Li Ping JIANG, Guang Han LU. A Multiwall Carbon Nanotube-chitosan Modified Electrode for Selective Detection of Dopamine in the Presence of Ascorbic Acid[J]. Chinese Chemical Letters, ;2005, 16(2): 229-232. shu

A Multiwall Carbon Nanotube-chitosan Modified Electrode for Selective Detection of Dopamine in the Presence of Ascorbic Acid

College of Chemistry, Central China Normal University, Wuhan 430079

Received Date: 29 December 2003

A novel multiwall carbon nanotube-chitosan modified electrode has been prepared.The modified electrode resolves the overlapping voltammetric response of dopamine and ascorbic acid into two well-defined peak by 212 mV. The mechanism of discrimination of dopamine from ascorbic acid is discussed. Dopamine can be determined selectively with the carbon nanotube-chitosan modified electrode. The electrode shows good sensitivity, selectivity and stability.
- Nanotube-chitosan modified electrode,
- dopamine,
- ascorbic acid.
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