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Reference type: Journal
Authors: Jiang TH, Zhao LX, Chu BL, Feng QH, Yan W, Lin JM
Article Title: Molecularly imprinted solid-phase extraction for the selective determination of 17β-estradiol in fishery samples with high performance liquid chromatography.
Publication date: 2009
Journal: Talanta
Volume: 78
Issue: (2)
Page numbers: 442-447.
DOI: 10.1016/j.talanta.2008.11.047
Alternative URL: http://www.sciencedirect.com/science/article/B6THP-4V3SY3T-1/2/6587897a328dc820e0029e8323d9548e

Abstract: A molecularly imprinted polymer (MIP) has been synthesized by a thermo-polymerization method using methacrylic acid (MAA) as functional monomer, ethylene glycol dimethacrylate (EGDMA) as cross-linker, acetonitrile as porogenic solvent, and 17β-estradiol as template. The MIP showed obvious affinity for 17β-estradiol in acetonitrile solution, which was confirmed by absorption experiments. After optimization of molecularly imprinted solid-phase extraction (MISPE) conditions, three structurally related estrogenic compounds (17β-estradiol, estriol, and diethylstilbestrol) were used to evaluate the selectivity of the MIP cartridges. The MIP cartridges exhibited highly selectivity for E2, the recoveries were 84.86.53% for MIPs and 19.11.93% for non-imprinted polymer (NIP) cartridges. The detection and quantification limits correspond to 0.023 and 0.076mgL-1. Furthermore, the MISPE methods were used to selectively extract E2 from fish and prawn tissue prior to HPLC analysis. This MISPE-HPLC procedure could eliminate all matrix interference simultaneously and had good recoveries (78.3-84.5%)
Template and target information: 17β-estradiol
Author keywords: 17β-estradiol, molecularly imprinted polymer, Solid-phase extraction, high performance liquid chromatography


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