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Imprinted Polymeric Film‐Based Sensor for the Detection of Dopamine Using Cyclic Voltammetry
Author(s) -
Guo HongSheng,
He XiWen,
Li YiJun
Publication year - 2003
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.20030211220
Subject(s) - ascorbic acid , chemistry , cyclic voltammetry , dopamine , electrode , polymer , molecularly imprinted polymer , molecule , voltammetry , molecular imprinting , chemical engineering , selectivity , organic chemistry , electrochemistry , catalysis , food science , neuroscience , engineering , biology
The imprinted polymeric film was synthesized on the glass‐carbon electrodes directly. The response to the template molecule‐dopamine and other molecules with similar structure was measured by cyclic voltammetry. The response of dopamine on imprinted electrode was much higher than that of other molecules, because of the existing of micro‐cavities in polymeric film fitting with the size and shape of dopamine in the imprinted polymer. Experimental results showed that dopamine can be enriched by the imprinted film, therefore increasing the sensitivity of the sensor. The imprinted film could also efface the interference of ascorbic acid, indicating that dopamine can be determined with a large excess of ascorbic acid.