Novel Method of Preparation of Monolithic Columns for Fast Separation byγ-Ray Irradiation  

作　　者：Yu Ping ZHANG Wen Jun GONG Li Qun FAN Yi Jun ZHANG Kwang Pill LEE 

机构地区：[1]Henan Institute of Science and Technology, Xinxiang 453003 [2]Department of Chemistry, Graduate School, Kyungpook National University, South Korea

出　　处：《Chinese Chemical Letters》2006年第11期1485-1488,共4页中国化学快报（英文版）

摘　　要：A porous monolithic sol-gel column with the solution of methacryloxypropyltrimethoxysilane in toluene with an acid catalyst was prepared in the presence and absence of sodium dodecyl sulfate. In situ polymerization was carded out by γ-ray irradiation within the capillary. The γ-radiation-initiated synthesis could generate radicals directly on the monomer avoiding use of any initiator. The chromatographic behavior of the capillary monolithic columns were studied in the modes of CEC, p-CEC and low pressure-driven separation, all the tests exhibited reversed-phase character. It provided a viable alternative to either thermally initiated or photo polymerization method for the preparation of monolithic columns.A porous monolithic sol-gel column with the solution of methacryloxypropyltrimethoxysilane in toluene with an acid catalyst was prepared in the presence and absence of sodium dodecyl sulfate. In situ polymerization was carded out by γ-ray irradiation within the capillary. The γ-radiation-initiated synthesis could generate radicals directly on the monomer avoiding use of any initiator. The chromatographic behavior of the capillary monolithic columns were studied in the modes of CEC, p-CEC and low pressure-driven separation, all the tests exhibited reversed-phase character. It provided a viable alternative to either thermally initiated or photo polymerization method for the preparation of monolithic columns.

关 键 词：Monolithic columns ELECTROCHROMATOGRAPHY γ-ray irradiation polymerization. 

分 类 号：O646[理学—物理化学]