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Reference type: Journal
Authors: Schirmer C, Meisel H
Article Title: Molecularly imprinted polymers for the selective solid-phase extraction of chloramphenicol.
Publication date: 2008
Journal: Analytical and Bioanalytical Chemistry
Volume: 392
Issue: (1)
Page numbers: 223-229.
DOI: 10.1007/s00216-008-2269-4

Abstract: Abstract: A variety of bulk polymers for the selective separation of chloramphenicol were synthesised from 2-vinylpyridine, diethylaminoethyl methacrylate or methacrylic acid monomers. Chromatographic evaluation indicated that chloramphenicol was retained under nonpolar elution conditions (k = 58.65) through selective hydrogen bonding and ionic interactions. The retention of chloramphenicol under aqueous elution conditions (k > 100) results from nonselective hydrophobic interactions. Under nonpolar elution conditions, the functional monomer employed imparted a significant influence on the recognition properties of the corresponding polymer. After solid-phase extraction using a molecularly imprinted polymer as sorbent and either an organic or aqueous washing solvent, nearly 100% recovery from the chloramphenicol standard solution was achieved, and nearly 90% recovery could be attained from spiked honey samples. The molecularly imprinted polymer was well suited to suppress matrix effects, and provided optimal preconcentration of the target molecule (chloramphenicol) prior to chromatographic analysis
Template and target information: chloramphenicol
Author keywords: molecular imprinting, Solid-phase extraction, liquid chromatography, chloramphenicol, Honey


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