**2.1.3 Capillary Electrophoresis**

Capillary electrophoresis (CE) was invented by Hjerten at the 1960s on the basis of the conventional electrophoretic technology and improves the electrophoresis efficiency by dozens of times by replacing the large electrophoresis tanks with the capillaries. This technology developed rapidly from 1980 and became a good tool for separation and determining the nature of polypeptides and protein substances by bio-chemical analysts and biochemical scholars. By application principles, CE can be divided into: Capillary Zone Electrophoresis (CZE), Capillary Isoelectric Focusing (CIEF), Capillary Gel Electrophoresis (CGE) and Micellar Electrokinetic Electrophoresis Chromatography(MECC).
