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 r...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.展开更多
基金ProjectsupportedbytheNationalNaturalScienceFoundationofChina (No .2 0 175 0 0 9) ,theDoctoralFoundationofEducationMinistryofChina (No .2 0 0 2 0 0 5 5 0 0 2 )andtheNaturalScienceFoundationofTianjin (No .0 3 3 60 3 5 11)
文摘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.
