Capillary gel electrophoresis (CGE) was first studied by Hjerten, who introduced gel intocapillary (I. D. 150μm) in 1983. The much thinner capillary (I. D. 75μm)was used byCohen et al.in 1987, who promoted CGE to rapid development. The mechanisms of gelelectrophoresis on slab and in capillary were not distinguished, but the latter can separate inshorter time with higher performance by applying higher electric field due to the overcoming Capillary gel electrophoresis (CGE) was first studied by Hjerten, who introduced gel intocapillary (ID 150 μm) in 1983. The much thinner capillary (ID 75 μm) was used by Cohen et al. In 1987, who promoted CGE to rapid development. The mechanisms of gelelectrophoresis on slab and in capillary were not distinguished, but the latter can separate inshorter time with higher performance by applying higher electric field due to the overcoming