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Reference type: Journal
Authors: Cheng WJ, Ma HT, Zhang L, Wang Y
Article Title: Hierarchically imprinted mesoporous silica polymer: An efficient solid-phase extractant for bisphenol A.
Publication date: 2014
Journal: Talanta
Volume: 120
Page numbers: 255-261.
DOI: 10.1016/j.talanta.2013.12.001
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0039914013009818

Abstract: Improving the site accessibility of molecularly imprinted polymer (MIP) is one of the biggest challenges for application of MIP in solid-phase extraction (SPE). Hierarchically imprinted mesoporous silica polymer was prepared with semicovalently bond imprinting methods based on MCM-41 and SBA-15 mesostructures, aiming to improve the site accessibility of MIP and increase the efficiency of molecularly imprinted-SPE. Characterization and performance tests of the obtained products revealed that molecularly imprinted SBA-15 (MIP-SBA-15) not only retained the mesoporous structure of SBA-15, but also displayed excellent selectivity of MIP to the target molecule. As the MIP-SBA-15 were adopted as the adsorbents of solid-phase extraction for detecting bisphenol A in spiked water samples, the recoveries of spiked samples more than 87%, which reveals that the molecularly imprinted SBA-15 were efficient SPE adsorbents for bisphenol A
Template and target information: bisphenol A, BPA
Author keywords: molecular imprint, mesoporous silica, bisphenol A, Solid-phase extraction, hierarchical structures

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