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Reference type: Journal
Authors: Gao WH, Pang J, Wang JJ, Gao L, Jia MY
Article Title: Preparation and Recognition Properties of a Bitertanol Electrochemical Sensor Based on Molecular Imprinting Technology.
Publication date: 2015
Journal: Modern Food Science and Technology
Volume: 31
Issue: (1)
Page numbers: 96-100.
DOI: 10.13982/j.mfst.1673-9078.2015.1.018
Alternative URL: http://www.xdspkj.cn/ch/reader/view_abstract.aspx?file_no=20150118&flag=1

Abstract: A sensitive, molecularly imprinted electrochemical sensor using bitertanol as the template molecule for the detection of bitertanol in foods was prepared by the electropolymerization of o-phenylenediamine on a glassy carbon electrode. The electrochemical properties of the molecularly imprinted sensor were studied by cyclic voltammetry (CV) and differential pulse voltammetry (DPV) using K3[Fe(CN)6] as the probe; the preparation conditions were optimized, and the selective responses of the molecularly imprinted sensor towards the template molecule and compounds with similar structures were investigated. The results showed that the optimal conditions to prepare the sensor were as follows: pH of 7.2; ratio of template molecule to functional monomer = 1:4; 15 polymerization circles; elution time of 13 min; 0.5 mol/L sulfuric acid : acetonitrile = 1:9 (V/V) as eluent. The relative standard deviation was 5.2% and the sensor performance was not attenuated after continuous elution of the electrode 10 times. The sensor had a high sensitivity, strong anti-interference ability, and good selective response towards bitertanol and compounds with similar structures. Using this sensor, compounds with similar structures could be determined separately, laying the foundation for the rapid detection of bitertanol in foods.
Template and target information: bitertanol
Author keywords: bitertanol, electropolymerization, molecular imprinting technology, sensor

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