高等学校化学学报 ›› 1993, Vol. 14 ›› Issue (11): 1528.

• 研究简报 • 上一篇    下一篇

高效毛细管电泳中的电渗研究

李红旗, 沈忠耀   

  1. 清华大学化工系, 北京 100084
  • 收稿日期:1992-11-21 修回日期:1993-02-05 出版日期:1993-11-24 发布日期:1993-11-24
  • 通讯作者: 沈忠耀.
  • 作者简介:李红旗, 男, 27岁, 博士, 讲师.

Studies on Electroosmotic Flow in High Performance Capillary Electrophoresis

LI Hong-Qi, SHEN Zhong-Yao   

  1. Department of Chemical Engineering, Tsmghua University, Beijing, 100084
  • Received:1992-11-21 Revised:1993-02-05 Online:1993-11-24 Published:1993-11-24

关键词: 高效毛细管电泳, 电渗, 分离技术

Abstract: Factors affecting electroosmosis in high performance capillary electrophoresis has been studied in detail.The electroosmotic flow rates are measured at different voltages, electrolytic concentrations, pHvalues in 0.2 mm I.D.silica capillaries.Modified silica capillaries coated with KH-570 or (C6H5)2SiCl2 are also investigated in the paper.It shows that the ξ voltage and electroosmotic flow rates can be reduced by lowering pHvalues and coating capillaries.

Key words: High performance capillary electrophoresis, Electroosmosis, Separation technique

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