By dual preconcentration of non-uniform field electrophoresis with electrostacking, or electrostacking with isotachophoresis, the preconcentration of capillary electrophoresis was improved evidently.

• 将非均匀电场电泳与电堆积、电堆积与等速电泳结合，用于毛细管电泳进样 预富集，取得显著效果。