Nonpolar Monolithic Capillary Electrochromatographic Column Modified with Cationic Surfactants on CEC

Chem. J. Chinese Universities ›› 2002, Vol. 23 ›› Issue (2): 213.

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Nonpolar Monolithic Capillary Electrochromatographic Column Modified with Cationic Surfactants on CEC

WU Ren-An^1,2, ZOU Han-Fa¹, YE Ming-Liang¹, LEI Zhen-Deng¹, NI Jian-Yi¹

1. National Chromatography Research & Analytical Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116011, China;
2. School of Chemical and Environmental Engineering, Wenzhou University, Wenzhou 325027, China

Received:2001-01-08 Online:2002-02-24 Published:2002-02-24

Abstract

Abstract: A mode of capillary electrochromatography(CEC) based on the dynamical adsorption of an nonpolar monolithic stationary phases with a cationic surfactant, long chain quaternary ammonium slat of cetyltrimethylammonium bromide(CTAB) has been developed. The effects of pHvalue and the concentration of cetyltrimethylammonium bromide in mobile phase on electroosmotic mobility and the retention factors of solutes were investigated.

Key words: Co-polymerization in-situ, Nonpolar monolithic capillary electrochromatographic column, Anionic surfactant, Electroosmotic flow

CLC Number:

O657.8

TrendMD:

WU Ren-An, ZOU Han-Fa, YE Ming-Liang, LEI Zhen-Deng, NI Jian-Yi. Nonpolar Monolithic Capillary Electrochromatographic Column Modified with Cationic Surfactants on CEC[J]. Chem. J. Chinese Universities, 2002, 23(2): 213.

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Nonpolar Monolithic Capillary Electrochromatographic Column Modified with Cationic Surfactants on CEC

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