Apparatus for effecting capillary electrophoresis

摘要

An apparatus is provided for concentrating a solute sample which can be subsequently released for analysis by capillary electrophoresis. The apparatus comprises a tube containing a short length of packed particles or gel adapted to retain sample solutes which particles are retained in the tube by tube constrictions or porous plugs. The tube includes an inlet for introducing a sample into the tube and an outlet for introducing the retained sample into a capillary electrophoresis tube.