高等学校化学学报 ›› 2004, Vol. 25 ›› Issue (12): 2250.

• 研究简报 • 上一篇    下一篇

硅胶整体柱芯的制备方法研究

高文惠1,2, 杨更亮1,3, 杨静1, 刘海燕1, 尹俊发1, 陈义3   

  1. 1. 河北大学化学与环境科学学院, 保定071002;
    2. 河北科技大学生物科学与工程学院, 石家庄050018;
    3. 中国科学院化学研究所分子科学中心, 北京100080
  • 收稿日期:2003-11-04 出版日期:2004-12-24 发布日期:2004-12-24
  • 基金资助:

    国家自然科学基金(批准号:20375010);河北省自然科学基金(批准号:202096);国家科学技术部基金(批准号:2002CCA3100,KJCX2-H4);中国科学院百人计划项目资助

Preparation Approach of Monolithic Silica Column

GAO Wen-Hui1,2, YANG Geng-Liang1,3, YANG Jing1, LIU Hai-Yan1, YIN Jun-Fa1, CHEN Yi3   

  1. 1. College of Chemistry and Environment Science, Hebei University, Baoding 071002, China;
    2. College of Biological Science and Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China;
    3. Molecular Science Center, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China
  • Received:2003-11-04 Online:2004-12-24 Published:2004-12-24

关键词: 硅胶整体柱, 溶胶-凝胶技术, 高效液相色谱, 孔结构

Abstract: A new approach of preparing monolithic silica column was founded by adopting an improved sol-gel 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.

Key words: Monolithic silica column, Sol-gel technology, High performance liquid chromatography, Pore structure

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