title: [Sample preconcentration technique in capillary electrophoresis].
abstract: The methods of improving the detection sensitivity in analysis of trace level components by sample preconcentration technique including sample stacking, field-amplified sample injection, isotachophoresis etc. are reviewed, and 67 references are cited.
authors.affiliation: Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China.
authors.forename: Y T
authors.initials: YT
authors.lastname: Yang
authors.forename: B
authors.initials: B
authors.lastname: Liang
authors.forename: Q Y
authors.initials: QY
authors.lastname: Ou
mesh_terms: D019075:Electrophoresis, Capillary / Q000379:methods*; D013048:Specimen Handling / Q000379:methods*