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Reference type: Journal
Authors: Gao XY, Pan MF, Fang GZ, Jing W, He SY, Wang S
Article Title: An ionic liquid modified dummy molecularly imprinted polymer as a solid-phase extraction material for the simultaneous determination of nine organochlorine pesticides in environmental and food samples.
Publication date: 2013
Journal: Analytical Methods
DOI: 10.1039/C3AY41083H

Abstract: In this research, a novel dummy molecularly imprinted polymer (DMIP) was prepared through a sol-gel process using bisphenol A as the dummy template and the synthesized 1-(triethoxysilyl) propyl-3-aminopropyl imidazole bromide (SilprImN) as the functional monomer. The prepared SilprImN-DMIP was characterized by FT-IR and verified with a satisfied identification and penetration performance to bisphenol A in static and kinetic adsorption tests. Furthermore, this novel DMIP was applied as a solid-phase extraction (SPE) material to develop a method for the simultaneous determination of nine organochlorine pesticides (OCPs) in environmental and food samples coupled to a multi dimensional gas chromatograph-mass spectrometer system. The SPE parameters, including sample acidity (pH), sample loading rate, the eluent and elution volume, were optimized in detail to achieve a good extraction efficiency. In water, rice and tea leaf samples spiked with nine OCPs, the OCPs were simultaneously determined with suitable recoveries from 65.65% to 129.61% and a good relative standard deviation (n = 3) of 0.91%-11.47%, indicating the satisfied accuracy and precision of the developed method
Template and target information: dummy template, bisphenol A, organochlorine pesticides, OCPs


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