The application of capillary electrophoresis(CE) in solvent system selection for high speed countercurrent chromatography was studied in this paper. CE has the advantages of high separation speed, high resolution, simple operation and low consumption. so CE has been used to determine the relative content of components in two phases. The good separation of components conduces to the knowledge of their distribution in sample. The solvent system could be defined according to the changes of relative content of...