title: Improvement in the method of sample stacking for gravity injection in capillary zone electrophoresis.
abstract: A method that allows capillary electrophoresis to be used as a microconcentrating technique is presented. An 85-fold improvement in the amount of material that can be injected into a capillary column without loss of resolution is shown. The method can be used for negative- and positive-charged species but it cannot be used for both species simultaneously.
authors.affiliation: Varian Research Center, Palo Alto, California 94304.
authors.forename: D S
authors.initials: DS
authors.lastname: Burgi
authors.forename: R L
authors.initials: RL
authors.lastname: Chien
mesh_terms: D004586:Electrophoresis / Q000379:methods*