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Reference type: Conference Proceeding
Authors: Zhang Y, Li Y
Publication date: 2012
Article title: Dedection of Parathion Based on Molecularly Imprinted Polymer of O-Aminothiophenol.
Page numbers: 707-712
DOI: 10.4028/www.scientific.net/AMR.482-484.707 Alternative URL: http://www.scientific.net/AMR.482-484.707

Proceedings title: Advanced Materials Research
Editors: Chen WZ, Liu XJ, Dai PQ, Chen YL, Jiang ZY
Publisher: Trans Tech Publications
City: Switzerland
Volume number: 482-484
Conference information: Advanced Composite Materials

Abstract: A new electrochemical modified electrode for the detection of parathion was constructed based on molecularly imprinted polymer of self-assembled o-aminothiophenol onto gold electrode. Cyclic voltammetry was employed in the process of electropolymerization and electrochemical measurements. The template molecules and the nonbound o-aminothiophenol were removed from the modified electrode surface by washing with 0.5mol/L hydrochloric acid. The effects of the ratio of monomers to templates, pH and incubation time on the reduction peak current of parathion at the imprinted polymer film coated electrodes were demonstrated. Parathion imprinted and nonimprinted polymer films were exposed to a series of closely related compounds and the sensor exhibited good selectivity and sensitivity to parathion. A highly linear response to parathion in the concentration range of 5.010-7~1.010-4mol/L was observed, with a detection limit of 2.010-7mol/L estimated at a signal-to-noise ratio of 3.
Template and target information: parathion
Author keywords: electropolymerization, Modified Electrode, molecularly imprinting, Parathion


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