期刊
ANALYTICA CHIMICA ACTA
卷 542, 期 1, 页码 97-103出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.aca.2005.02.054
关键词
molecularly imprinted polymer; sulfonylurea; metsulfuron methyl; solid phase extraction (SPE)
Molecularly imprinted polymers (MIPs) possessing a good binding ability for the family of sulfonylurea herbicides were prepared using 4- or 2-vinyl pyridine as functional monomers and ethylene glycol dimethylacrylate as a crosslinker. Metsulfuron methyl was used as a template. It was found that MIP prepared in a polar organic solvent (acetonitrile) showed good recognition of the template and five other sulfonylurea herbicides (thifensulfuron methyl, chlorsulfuron, prosulfuron, chlorimuron ethyl, triflusulfuron methyl). The binding capacity was 0.08-0.1 mg g(-1) of the polymer. It was found that the polymer could be used for quantitative enrichment (> 75%) of five sulfonylurea herbicides from water. (c) 2005 Elsevier B.V. All rights reserved.
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