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Reference type: Journal
Authors: Wang XY, Wang YH, Zhang H, Li JH, Nie W, Zhao CJ
Article Title: Research on the properties of molecular imprinting polymers synthesized by seed swelling and polymerization method.
Publication date: 2014
Journal: Journal of Shenyang Pharmaceutical University
Volume: 31
Issue: (2)
Page numbers: 87-93.
Alternative URL: http://asianjtm.com/qikan/epaper/zhaiyao.asp?bsid=16187

Abstract: Objective To prepare chlorpyrifos, atrazine, carbofuran molecular imprinting polymers (MIPs) by seed swelling and polymerization method and study the adsorption properities of the MIPs. Methods Polystyrene microspheres(PS) were prepared by dispersion polymerization method. Molecular imprinting polymers were synthesized by seed swelling and polymerization method using polystyrene microspheres as seedball, three pesticides individually as template, methacrylic aid (MAA) as functional monomer and ethylene glycol dimethacrylate(EDMA) as cross-linker. The morphological characterization of the MIPs were characterized by scanning electron microscopy (SEM). Affinity and selectivity of MIPs were investigated by constant temperature oscillation experiments. Results Monodispersed PS microspheres with uniformity degree of sphericity were synthesized. Chlorpyrifos, atrazine and carbofuran molecularly imprinted polymers were prepared, and binding experiments revealed that binding sites were formed on MIPs. The adsorption percentage in the fruits and vegetables were 71.84%-87.2% and the RSD were 2.34%-4.52%. The prepared polymers also showed a fast adsorption reaction with the saturation time of 2 hours. Conclusion The molecularly imprinted polymers which are synthesized by seed swelling and polymerization method can be used for the fast and selective determination of trace chlorpyrifos, atrazine and carbofuran in fruit and vegetable samples.
Template and target information: Chlorpyrifos, atrazine, carbofuran
Author keywords: seed swelling polymerization method, molecular imprinting polymers, Pesticide residues


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