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Reference type: Journal
Authors: Baggiani C, Giovannoli C, Anfossi L, Tozzi C
Article Title: Molecularly imprinted solid-phase extraction sorbent for the clean-up of chlorinated phenoxyacids from aqueous samples.
Publication date: 2001
Journal: Journal of Chromatography A
Volume: 938
Issue: (1-2)
Page numbers: 35-44.
DOI: 10.1016/S0021-9673(01)01126-8
Alternative URL: http://144.206.159.178/ft/553/46649/831268.pdf

Abstract: A molecularly imprinted polymer (MIP) was synthesized using the herbicide 2,4,5-trichlorophenoxyacetic acid as a template, 4- vinylpyridine as an interacting monomer, ethylendimethacrylate as a cross-linker and a methanol-water mixture as a porogen. The binding properties and the selectivity of the polymer towards the template were investigated by frontal and zonal liquid chromatography. The polymer was used as a solid-phase extraction material for the clean-up of the template molecule and some related herbicides (2,4-dichlorophenoxyacetic acid, fenoprop, dichlorprop) from river water samples at a concentration level of ng/ml with quantitative recoveries comparable with those obtained with a traditional C-18 reversed-phase column when analyzed by capillary electrophoresis. The results obtained show that the MIP-based approach to the solid-phase extraction is comparable with the more traditional solid-phase extraction with C-18, reversed- phase columns in terms of recovery, but it is superior in terms of sample clean-up. (C) 2001 Elsevier Science B.V. All rights reserved
Template and target information: 2,4,5-trichlorophenoxyacetic acid


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