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with diode array detector and mass spectrometry. J. Chromatogr. A, 1216, 2009, 2111 - 2117. TAMAYO, F.G., TURIEL, E., MARTÍN-ESTEBAN, A.: Molecularly imprinted polymers for solid-phase extraction and solid-phase microextraction: Recent developments and future trends. J. Chromatogr. A, 1152, 2007, 32-40. WANG, W., TANG, J., WANG, S., ZHOU, L., HU, Z.: Method development for the determination of coumarin compounds by capillary electrophoresis with indirect laser-induced fluorescence detection. J. Chromatogr. A, 1148, 2007, 108-114. ZHOU, T., XIAO, X., LI, G., ZONG

Abstract

Selective molecularly imprinted polymers (MIPs) with bisphenol A as template were synthesized using the non-covalent imprinting approach. MIPs were prepared using thermally initiated polymerization with 1,1’-azobis(cyclohexanecarbonitryle) (ACHN) as initiator and ethylene glycol dimethacrylate (EDMA) as a cross-linking agent. The tested functional monomers included methacrylic acid, acrylamide, and 4-vinylpyridine. The selectivity of the BPA-MIP for the solid phase extraction of bisphenol A was tested in samples containing other related alkylphenols. The polymers prepared in acetonitrile using methacrylic acid or acrylamide as monomer showed the highest selectivity towards target analyte (the selectivity ratio 8:1, respectively for MIP and NIP). The proposed procedure has been proven to be an effective for selective extraction of bisphenol A in aqueous samples (recoveries over 85%) enabling detection and quantification limits of 25 and 70 μg/dm3, respectively based on 10 cm3 of sample volume, with relative standard deviations (RSD) lower than 6%. The obtained molecularly imprinted material showed interesting properties for selective extraction and preconcentration of studied analyte from large volumes of aqueous samples without any problems of cartridge clogging.

, 33 , 617-626. 4. Rani, K.; Garg, P.; Pundir, C.S. Discrete analysis of bile acid in serum and bile with 3α-hydroxysteroid dehydrogenase and diaphorase immobilized onto alkylamine glass beads. Indian J. Biochem. Biophys. 2006 , 43 , 98-104. 5. Okutucu, B.; Önal, S. Molecularly imprinted polymers for separation of various sugars from human urine. Talanta 2011 , 87 , 74-79. 6. Li, S.; Huang, X.; Zheng, M.; Li, W. Molecularly imprinted polymers: modulating molecular recognition by a thermal phase transition in the binding framework. Anal. Bioanal. Chem . 2008

(2008) 451-461; DOI: 10.1556/ AChrom.20.2008.3.11. 3. G. Vasapollo, R. Del Sole, L. Mergola, M. R. Lazzoi, A. Scardino, S. Scorrano and G. Mele, Molecularly imprinted polymers: Present and future prospective, Int. J. Mol Sci. 12 (2011) 5908-5945; DOI: 10.3390/ijms12095908. 4. S. Piletsky, E. Piletska, K. Karim, G. Foster, C. Legge and A. Turner, Custom synthesis of molecular imprinted polymers for biotechnological application: Preparation of a polymer selective for tylosin, Anal. Chim. Acta 504 (2004) 123-130; DOI: 10.1016/S0003-2670(03)00814-6. 5. Y. Lu, C. Li

., HENSCHEL, H., WHITCOMBE, M. J., WIKMAN, S., NICHOLLS, I.A.: Molecularly imprinted polymer catalysis of a Diels-Alder reaction. J. Mol. Catal. B: Enzym., 58, 2009, 110 - 117. LI, J., JIANG, F., LI, Y., CHEN, Z.: Fabrication of an oxytetracycline molecularimprinted sensor based on the competition reaction via a GOD-enzymatic amplifier. Biosens. Bioelectron., 26, 2011, 2097 - 2101. LUO, Y., HUANG, P., FU, Q., DU, W., SUN, S., LI, Y., LIU, M., CHANG, CH.: Preparation of monolithic imprinted stationary phase for clenbuterol by in situ polymerization and application in

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