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  • Title: [Preparation of C18-silica hybrid monolithic capillary column by "one-pot" process and its application].
    Author: Zhang Z, Ou J, Dong J, Wang F, Wu M, Lin H, Zou H.
    Journal: Se Pu; 2011 Sep; 29(9):830-6. PubMed ID: 22233068.
    Abstract:
    A "one-pot" process for the preparation of organic-silica hybrid capillary monolithic column by concurrently using tetramethoxysilane (TMOS), vinyltrimethoxysilane (VTMS) and the organic monomer, N-(2-(methacryloyloxy) ethyl) dimethyl-octadecylammonium bromide (MDOAB), is described. The polycondensation of alkoxysilanes and the copolymerization of MDOAB and VTMS were subsequently carried out within the confines of a capillary under the proper reaction conditions. The performance of the C18-silica hybrid monolithic column was investigated by capillary electrochromatography and capillary liquid chromatography. In addition, the C18-silica hybrid capillary monolithic column was also applied in the analysis of tryptic digests of bovine serum albumin by capillary liquid chromatography/tandem mass spectrometry (CLC-MS/MS) for demonstrating its potential in proteome analysis. This in situ process of incorporating functional groups into silica monolith provides a new way for the preparation of the organic-silica hybrid monolithic column.
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