MIPdatabase
Authors: Li LJ, Zhang L, Cui FH, Cheng H, Li YQ
Article Title: Preparation and properties of electrochemical sensor for chlorogenic acid based on molecular imprinted polymers.
Publication date: 2015
Journal: Chinese Journal of Analysis Laboratory
Volume: 34
Issue: (5)
Page numbers: 503-506.
Alternative URL: http://en.cnki.com.cn/Article_en/CJFDTotal-FXSY201505003.htm
Abstract: An electrochemical sensor based on melorcularly imprinted films for chlorogenic acid (CGA) detection is reported. The sensor was prepared by electropolemerizing o-phenylenediamine (OPD) on a glassy carbon electrode in the presence of template chlorogenic acid. Differential pulse voltammetry was applied to investigate the analytical characteristics of the sensor, and indirect analytical method based on K3[Fe(CN)6] which is as electron transfer medium was established. The results indicate that the method has high selectivity and sensitivity, the relative peak current of sensor shows a linear dependance on the concentration of chlorogenic acid in the range of 8.0 × 10-7 ~ 2.0 × 10-5 mol/L, with the detection limit of 1.4 × 10-7 mol/L. This sensor was successfully applied to determination of chlorogenic acid in qinggan lidan oral liquid samples with recoveries ranging from 101.6% to 105.5%.
Template and target information: chlorogenic acid, CGA
Author keywords: chlorogenic acid, o-phenylenediamine, molecularly imprinted polymer, Electrochemical sensor
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