Hierarchically imprinted mesoporous silica polymer: an efficient solid-phase extractant for bisphenol A.
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.
Academy of Fundamental and Interdisciplinary Sciences, Harbin Institute of Technology, Harbin 150001, China.
Wenjing
W
Cheng
Academy of Fundamental and Interdisciplinary Sciences, Harbin Institute of Technology, Harbin 150001, China.
Haotian
H
Ma
Academy of Fundamental and Interdisciplinary Sciences, Harbin Institute of Technology, Harbin 150001, China.
Li
L
Zhang
Academy of Fundamental and Interdisciplinary Sciences, Harbin Institute of Technology, Harbin 150001, China. Electronic address: wangy_msn@hotmail.com.
Yan
Y
Wang
D000327:Adsorption; D001559:Benzhydryl Compounds / Q000302:isolation & purification*; D002851:Chromatography, High Pressure Liquid; D004968:Estrogens, Non-Steroidal / Q000302:isolation & purification; D054802:Molecular Imprinting / Q000379:methods*; D010636:Phenols / Q000302:isolation & purification*; D016062:Porosity; D012822:Silicon Dioxide / Q000737:chemistry*; D052616:Solid Phase Extraction / Q000379:methods*; D014867:Water / Q000032:analysis; D014874:Water Pollutants, Chemical / Q000302:isolation & purification*; D000098826:Bisphenol A Compounds
D001559:Benzhydryl Compounds; D004968:Estrogens, Non-Steroidal; D010636:Phenols; D012822:Silicon Dioxide; D014867:Water; D014874:Water Pollutants, Chemical; C509968:MCM-41; C509969:SBA-15; C006780:bisphenol A; D000098826:Bisphenol A Compounds
Bisphenol A; Hierarchical structures; Mesoporous silica; Molecular imprint; Solid-phase extraction