Liquid Crystal Modified Organic\|inorganic Hybrid Silica Monolithic Column for Capillary Electrochromatography

Chem. J. Chinese Universities ›› 2011, Vol. 32 ›› Issue (1): 50.

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Liquid Crystal Modified Organic\|inorganic Hybrid Silica Monolithic Column for Capillary Electrochromatography

FENG Rui¹, SHEN Min¹, CHEN Hao^1*, HUANG Zai-Fu², ZENG Zhao-Rui^2*

1. College of Science, Huazhong Agricultural University, Wuhan 430070, China;
2. College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China

Received:2010-05-24 Revised:2010-10-25 Online:2011-01-10 Published:2010-12-11
Contact: Hao Chen E-mail:hchenhao@mail.hzau.edu.cn
Supported by:
National Natural Science Foundation of China

Abstract

Abstract: A terminal-vinyl liquid crystal 4’-(ω- undecenyloxyl)-4-xenol was synthesized and used to modify terminal-vinyl organic-inorganic hybrid silica monolithic column by free radical polymerization procedure using AIBN as an initiator. Naphthol, PAHs, phthalate ester and steroids were successfully separated on the column and the separation effects were compared with unmodified column. Mechanism was inferred to hydrophobic interaction, π-π interaction and hydrogen bonding. Reproducibilities of migration times for steroids were reasonable with RSD less than 3.27% for five consecutive within-column runs and were 7.39-9.05% for column-to-column measurements of three columns, respectively.

Key words: Liquid crystal, organic-inorganic silica monolithic column, capillary electrochromatography

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FENG Rui, SHEN Min, CHEN Hao*, HUANG Zai-Fu, ZENG Zhao-Rui*. Liquid Crystal Modified Organic\|inorganic Hybrid Silica Monolithic Column for Capillary Electrochromatography[J]. Chem. J. Chinese Universities, 2011, 32(1): 50.

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Liquid Crystal Modified Organic\|inorganic Hybrid Silica Monolithic Column for Capillary Electrochromatography

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