Novel preparation of monolithic imprinted columns for electrochromatographic separation by photopolymerization  

作　　者：Yu Ping Zhang Guo Qiang Zuo Wen Jun Gong Yue E.Deng Quan Ming Li 

机构地区：[1]Henan Institute of Science and Technology,Xinxiang 453003,China [2]Department of Chemistry,Henan Nomal University,Xinxiang 453003,China

出　　处：《Chinese Chemical Letters》2007年第6期734-737,共4页中国化学快报（英文版）

摘　　要：A monolithic molecularly imprinted polymer with specific recognition ability for 4-hydroxybenzoic acid (4-HBA) was prepared by in situ photopolymerization, using methacrylic acid (MAA) as a functional monomer, ethylene glycol dimethacrylate (EDMA) as a cross-linking agent, toluene and isooctane as porogenic solvents and Irgacure 1800 as an initiator. Baseline separation of isomers of hydroxybenzoic acid was achieved in less than 8 min on this monolithic column using 4-HBA as template, but not on the blank polymer. Furthermore, some neutral compounds could also be baseline-separated on the imprinted polymer column in the mode of pressure-driven capillary electrochromatography.

关 键 词：Monolithic columns Molecularly imprinted polymer ELECTROCHROMATOGRAPHY PHOTOPOLYMERIZATION 

分 类 号：O658[理学—分析化学]