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Reference type: Journal
Authors: Tan F, Zhao HX, Li XN, Quan X, Chen JW, Xiang XM, Zhang X
Article Title: Preparation and evaluation of molecularly imprinted solid-phase microextraction fibers for selective extraction of bisphenol A in complex samples.
Publication date: 2009
Journal: Journal of Chromatography A
Volume: 1216
Issue: (30)
Page numbers: 5647-5654.
DOI: 10.1016/j.chroma.2009.06.007
Alternative URL: http://www.sciencedirect.com/science/article/B6TG8-4WGMB75-3/2/8b6c5e4e3953c6ef55950eacd51c036e

Abstract: Molecular imprinted polymer (MIP) as solid-phase microextraction (SPME) fibers coating has gained great attention in recent years. In this study, a simple preparation approach for bisphenol A (BPA) MIP coating with controlled thickness on fused-silica capillaries was developed. A capillary was inserted into a larger bore capillary to form a sleeve as mold. The prepolymer solution containing the template BPA was introduced into the interspace between the two capillaries for polymerization under photoirradiation. The larger bore capillary was removed away after the polymerization, and MIP coating with certain thickness on the surface of the inserted capillary was obtained. SPME conditions based on the MIP-coated fibers were optimized, and the extraction performance of the fibers with different thickness coating was compared. Finally, the MIP fibers were used for selective extraction of BPA spiked in tap water, human urine, and milk samples. The average recoveries of spiked BPA in the three samples were 92.5%, 81.6%, and 87.5%, respectively. The present analytical performance is not up to par for applicability to real environmental matrices. Further improvement will be necessary for analysis of real complex samples
Template and target information: bisphenol A, BPA
Author keywords: bisphenol A, liquid chromatography, molecular imprinted polymer, solid-phase microextraction


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