Capillary electrochromatography with physically and dynamically absorbed stationary phases

Adsorption is always considered a troublesome effect in capillary electroph oresis (GE) and capillary electrochromatography (CEC). However, the adsorpt ion effect can also be exploited to prepare or optimize the stationary phas e in CEC. Compared with the chemical synthesis of new stationary phase mate rials for CEC, this method is simpler and more convenient. This review is f ocused on CEC with physically and dynamically adsorbed stationary phases. S eparation of some acidic, basic and neutral solutes as well as enantiomers in CEC with dynamically adsorbed stationary phases are presented. The theor y for the migration of charged solutes and the stationary phases currently used in CEC are also briefly reviewed.