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《Chinese Journal of Applied Chemistry》 2010-01
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Preparation of Molecularly Imprinted Polymer Films Modified Silica Gel and Its Extraction Application

LI Yonga,ZHOU Wen-Huia,YANG Huang-Haob,WANG Xiao-Rua,b(aCollege of Chemistry and Chemical Engineering,Ocean University of China,Qingdao;bThe First Institute of Oceanography,SOA,Qingdao 266061)  
This paper describes the use of surface initiated reversible addition-fragmentation chain transfer(RAFT) polymerization to graft thin molecularly imprinted polymer(MIP) films on silica gel particles(MIP-Silica).The grafted imprinted polymer film was characterized by elemental analysis and nitrogen adsorption analysis.The MIP-silica prepared in this study improved mass-transfer properties compared with MIPs prepared by conventional bulk polymerization.In addition,the MIP-Silica can be used as the sorbent in solid-phase extraction to determine the theophylline in blood serum with satisfactory recovery.Furthermore,the MIP-silica can also be applied in HPLC and capillary electrochromatography.
【Fund】: 国家自然科学基金(20775019);; 国家“八六三”计划(2006AA09Z168);; 山东省自然科学基金(Y2006B01);; 国家海洋局青年基金(2007601)资助项目
【CateGory Index】: R318.0
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