Rapid Preparation of Monolithic Columns for Capillary Electrochromatography Separation  

作　　者：Wen Jun GONG Yi Jun ZHANG Yu Ping ZHANG Seong Ho CHOI 

机构地区：[1]Henan Institute of Science and Technology, Xinxiang 453003 [2]Department of Chemistry, Hannam University, Daejon, South Korea

出　　处：《Chinese Chemical Letters》2006年第6期813-816,共4页中国化学快报（英文版）

摘　　要：Fritless packed silica gel columns were prepared using sol-gel technology, The part of a 75 μm i.d. capillary was filled with a mixture of methacryloxypropyltrimethoxysilane, toluene and hydrochloric acid. Four different photoinitiators such as benzoin methyl ether, Irgacure 819, Irgacure 1700 and Irgacure 1800 were added in the presence or absence of sodium dodecyl sulfate during the polymerization process. The above eight solutions were irradiated at 365 nm about 5-10 min to prepare the porous monolithic sol-gel columns by a one-step process.Fritless packed silica gel columns were prepared using sol-gel technology, The part of a 75 μm i.d. capillary was filled with a mixture of methacryloxypropyltrimethoxysilane, toluene and hydrochloric acid. Four different photoinitiators such as benzoin methyl ether, Irgacure 819, Irgacure 1700 and Irgacure 1800 were added in the presence or absence of sodium dodecyl sulfate during the polymerization process. The above eight solutions were irradiated at 365 nm about 5-10 min to prepare the porous monolithic sol-gel columns by a one-step process.

关 键 词：Monolithic columns ELECTROCHROMATOGRAPHY photopolymerized sol-gel. 

分 类 号：O657.8[理学—分析化学]