[Advances in column and stationary phase of capillary electrochromatography].

Capillary electrochromatography (CEC) has attracted increasing interests in recent years. It combines the advantages of high efficiency of capillary electrophoresis (CE) with high selectivity of high performance liquid chromatography (HPLC). CEC also has a double retention mechanism of both CE and HPLC and, therefore, is suitable for simultaneous separation and analysis of neutral and charged compounds. In this paper, the preparation methods for various types of capillary columns for electrochromatography are reviewed in detail and their advantages and disadvantages are discussed.