Template-Assisted Polymeric Spherules For The Solid Phase Extraction Of Chlorfenapyr From Contaminated Water

This work presents a combination of three functional monomers, acrylonitrile, vinyl acetate, and acrylic acid to synthesize template assisted spherules for the selective recognition of chlorfenapyr; a halogenated pyrrole class of pro-pesticides. Chlorfenapyr imprinted polymer spherules (MIPs) were synthesized through precipitation polymerization, characterized, and applied to extract pesticide from agricultural run-off with an adsorption capacity of 8.7 mg/g. The imprinting effect was evaluated by comparing the binding ability of MIP to the structural analogues of chlorfenapyr. The maximum percentage recovery of 91%, limit of detection 3.5 x 10(-5) mol/L and limit of quantification 0.1 x 10(-4) mol/L were obtained.