摘要
提出了一种可利用径向电场控制电渗的新型毛细管电泳装置，着重讨论了其工作原理、电渗控制方法及相关结果。该装置不仅能方便地实现电渗的电场控制，而且通过略加改进，还能与商品仪器兼容。
A novel CE system has been established which offers several ways to contro1 the electroosmosis by electric field. The main feature of the system is a specially fabricated capil- lary-cartridge unit, with which we can achieve CE separation and electroosmosis contro1 us- ing flexible silica capillary and on1y one high-voltage power supply. The cartridge is so con- structed that the voltage can be separated and applied to capillaries at a given value through a pair of linking nodes and variable resistors made of capillaries. After modification, the car- tridge can also be mounted in some commercial CE instruments. Experiment showed that the electroosmosis can only be controlled when buffer pH is lower than 6. 0.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
1998年第4期373-377,共5页
Chinese Journal of Analytical Chemistry
基金
国家自然科学基金资助项目!(NO29575215)
关键词
毛细管电泳
电渗控制
径向电场控制法
CE
Capillary electrophoresis, electroosmosis, radial electric fied control
