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Reference type: Journal
Authors: Pardieu E, Cheap H, Vedrine C, Lazerges M, Lattach Y, Garnier F, Remita S, Pernelle C
Article Title: Molecularly imprinted conducting polymer based electrochemical sensor for detection of atrazine.
Publication date: 2009
Journal: Analytica Chimica Acta
Volume: 649
Issue: (2)
Page numbers: 236-245.
DOI: 10.1016/j.aca.2009.07.029
Alternative URL: http://genie-analytique.cnam.fr/servlet/com.univ.collaboratif.utils.LectureFichiergw?ID_FICHIER=1295877018053

Abstract: An original electrochemical sensor based on molecularly imprinted conducting polymer (MICP) is developed, which enables the recognition of a small pesticide target molecule, atrazine. The conjugated MICP, poly(3,4-ethylenedioxythiophene-co-thiophene-acetic acid), has been electrochemically synthesized onto a platinum electrode following two steps: (i) polymerization of comonomers in the presence of atrazine, already associated to the acetic acid substituent through hydrogen bonding, and (ii) removal of atrazine from the resulting polymer, which leaves the acetic acid substituents open for association with atrazine. The obtained sensing MICP is highly specific towards newly added atrazine and the recognition can be quantitatively analyzed by the variation of the cyclic voltammogram of MICP. The developed sensor shows remarkable properties: selectivity towards triazinic family, large range of detection (10-9 mol L-1 to 1.5 x 10-2 mol L-1 in atrazine) and low detection threshold (10-7 mol L-1)
Template and target information: atrazine
Author keywords: electrochemical sensors, Molecularly imprinted polymers, conducting polymers, atrazine


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