高等学校化学学报 ›› 2011, Vol. 32 ›› Issue (1): 50.

• 研究论文 • 上一篇    下一篇

液晶修饰的有机-无机杂化硅整体柱的制备及电色谱性能

冯睿1,沈敏1,陈浩1,黄载福2,曾昭睿2   

  1. 1. 华中农业大学理学院, 武汉 430070;
    2. 武汉大学化学与分子科学学院, 武汉 430072
  • 收稿日期:2010-05-24 修回日期:2010-10-25 出版日期:2011-01-10 发布日期:2010-12-11
  • 通讯作者: 陈浩 E-mail:hchenhao@mail.hzau.edu.cn
  • 基金资助:

    国家自然科学基金(批准号: 20575049)资助.

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

FENG Rui1, SHEN Min1, CHEN Hao1*, HUANG Zai-Fu2, ZENG Zhao-Rui2*   

  1. 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

摘要: 合成了一种含有端烯基的液晶4’-(ω-十一烯基氧)-4-联苯酚,采用AIBN引发的自由基聚合反应修饰含有烯基的有机-无机杂化硅整体柱,并用于毛细管电色谱。成功分离了萘酚、多环芳烃、酞酸酯和甾体激素,并与未修饰柱的分离效果进行比较,认为疏水作用、π-π作用和氢键作用是导致分离的主要原因。以甾体激素为分离对象考察了柱内和柱间重现性,五次连续进样的柱内迁移时间RSD小于3.27%,制备的三根柱子柱间迁移时间的RSD为7.39-9.05%。

关键词: 液晶, 杂化硅整体柱, 毛细管电色谱

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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