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Development and Characterization of an Electrochemical Sensor for Cinchonidine Detection Based on Molecularly Imprinted Polymer with Modified Rosin as Cross-linker 被引量:1
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作者 LIU Li TAN Xue-cai +3 位作者 ZHAO Dan-dan WANG Lin LEI Fu-hou HUANG Zai-yin 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 2012年第3期410-414,共5页
Molecularly imprinted polymers(MIPs) were applied as molecular recognition elements to an electro- chemical sensor for cinchonidine(CD). A kind of MIP was synthesized with cinchonidine as template, modified ro- si... Molecularly imprinted polymers(MIPs) were applied as molecular recognition elements to an electro- chemical sensor for cinchonidine(CD). A kind of MIP was synthesized with cinchonidine as template, modified ro- sin(ethylene glycol maleic rosinate acrylate) containing the skeleton of phenanthrene rings as cross-linker and me- thylacrylic acid as functional monomer. MIP membrane was prepared on a glassy carbon electrode for the determina- tion of CD via free radical polymerization method. Electrochemical impedance spectroscopy(EIS) and cyclic vol- tammetry(CV) were used to characterize the membrane electrochemical behavior in electrode fabrication process. The experimental conditions were discussed. Under optimum conditions, it was found that the response of peak cur- rents was linear to the concentration of CD in a range of 0.013-2.26 mmol/L. The detection limit for CD is 1 μmol/L the relative standard deviation for 100 μmol/L CD is 1.34% and the incubation time is 2 min. The sensor was applied to the determination of CD in urine samples with satisfactory results. 展开更多
关键词 Ethylene glycol maleic rosinate acrylate CINCHONIDINE Molecularly imprinted polymer Electrochemicalsensor
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