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Reference type: Journal
Authors: Zhu XL, Yang J, Su QD, Cai JB, Gao Y
Article Title: Molecularly imprinted polymer for monocrotophos and its binding characteristics for organophosphorus pesticides.
Publication date: 2005
Journal: Annali di Chimica
Volume: 95
Issue: (11-12)
Page numbers: 877-885.
DOI: 10.1002/adic.200590100

Abstract: In this study, molecular imprinting was used to develop a method based on noncovalent interaction for the synthesis of a monocrotophos-specific polymer. The selective binding characteristics of the template polymer were evaluated by 1H NMR study. The result was consistent with the existence of multi-molecular complexes formed by hydrogen-bonding interactions. Batch rebinding studies in acetonitrile were undertaken to quantitatively evaluate the affinity of the polymer for monocrotophos. The experimental binding isotherms were fitted to the Freundlich isotherm and the total number of binding sites of the polymer can be calculated to be 4.046 μmolg-1. The induced affinity and selectivity by imprinting were examined chromatographically. The polymer gave more than 15 times longer retention for monocrotophos than the nonimprinted polymer with the same chemical composition. Other organophosphorus pesticides under study were eluted close to the void volume on the polymer column
Template and target information: monocrotophos


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