Abstract : A new molecularly imprinted polymer material having urea molecule selective cavities was introduced
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Abstract : A new molecularly imprinted polymer material having urea molecule selective cavities was introduced. Urea was properly dissolved in acetonitrile in the presence of an acidic functional monomer. Molecularly imprinted polymers with different compositions were examined and the roper formulation was selected. It was shown that the MIP had a considerable selectivity for urea in comparison to similar compounds such as thiourea and hydroxyurea. The obtained polymer was used as an adsorber for solid phase extraction (SPE) of urea in the aqueous samples. The extracted urea was determined by using a spectrophotometric method. Different parameters of SPE were optimized and the developed procedure was used for urea determination in real samples. The calibration graph of the method was linear in the range of 0.6-8.3 micromol L(-1). The detection limit was calculated to be 0.14 micromol L(-1).Copyright 2010 Elsevier B.V. All rights reserved.PMID 20510909 PubMed - indexed for MEDLINEMeSH Terms SubstancesMeSH TermsLimit of DetectionMolecular Imprinting*Polymers*/chemical synthesisPolymers*/chemistrySolid Phase Extraction/methodsSpectrophotometryUrea*/analysisUrea*/isolation amp purificationWater Pollutants Chemical/analysisSubstancesPolymersWater Pollutants ChemicalUreaLinkOut - more resourcesFull Text SourcesElsevier ScienceEBSCOOhioLINK Electronic Journal CenterSwets Information ServicesMolecular Biology DatabasesUREA - HSDB Supplemental Content Related citations Development of a selective molecularly imprinted polymer-based solid-phase extraction for indomethacin from water samples. Anal Bioanal Chem. 2008 Development of a selective molecularly imprinted polymer-based solid-phase extraction for indomethacin from water samples.Yang T Li YH Wei S Li Y Deng A. Anal Bioanal Chem. 2008 Aug 391(8)2905-14. Epub 2008 Jun 25. 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Recent activity Clear Turn Off Turn On Preparation of molecularly imprinted polymer containing selective cavities for u... Preparation of molecularly imprinted polymer containing selective cavities for urea molecule and its application for urea extraction.Anal Chim Acta. 2010 Jun 11 669(1-2)94-101. Epub 2010 May 17 . PubMed Your browsing activity is empty. Activity recording is turned off. Turn recording back on See more... 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