Preparation approach of monolithic silica column
Gao, WH; Yang, GL; Yang, J; Liu, HY; Yin, JF; Chen, Y
AbstractA new approach of preparing monolithic silica column was founded by adopting an improved solgel technology with tetramethoxysilane and polyethylene glycol as the matrix materials. The reason of resulting in crack and deformation of monolithic column was explained. By using N,N-dimethylformamide and a heat treatment procedure, the problems of crack and deformation in preparing the column were solved and the drying time was shortened greatly. In addition, the methods of fabricating mesopore and the effects of porogen solvent of different concentrations on monolithic silica column were investigated. The results show that the column prepared possessed bimodal pores structures with micrometer-size co-continuous through-pores and silica skeletons which have nanometer-size mesopores, straight appearance, high porosity, good chemical and mechanical stability. The characteristics would favour the separation with a rapid speed and high efficiency for both small molecules and macromolecules.
KeywordMonolithic Silica Column Sol-gel Technology High Performance Liquid Chromatography Pore Structure
Indexed BySCI
WOS IDWOS:000225904200015
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Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorYang, GL
Affiliation1.Hebei Univ, Coll Chem & Environm Sci, Baoding 071002, Peoples R China
2.Hebei Univ Sci & Technol, Coll Biol Sci & Engn, Shijiazhuang 050018, Peoples R China
3.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Gao, WH,Yang, GL,Yang, J,et al. Preparation approach of monolithic silica column[J]. CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2004,25(12):2250-2252.
APA Gao, WH,Yang, GL,Yang, J,Liu, HY,Yin, JF,&Chen, Y.(2004).Preparation approach of monolithic silica column.CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,25(12),2250-2252.
MLA Gao, WH,et al."Preparation approach of monolithic silica column".CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE 25.12(2004):2250-2252.
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