Method and apparatus for effecting capillary sample injection in

Details Method and apparatus for effecting capillary sample injection in Method and apparatus for effecting capillary sample injection in

1990-08-30

1992-06-09

Niebling, John

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

204299R, 2041823, B01D 5702, B01D 6142, C25B 700, C25D 1300

Patent

active

051204142

ABSTRACT:
An electrode structure is provided for feeding a solute sample to a capillary electrophoresis separation process. The apparatus comprises a conductive plate connected to an electrical lead and an absorbent layer wet with an electrolyte solution and positioned on the plate. A membrane containing a sample is positioned on the absorbent layer in contact with an entrance end of a capillary tube forming part of the separation process. The sample is fed to the entrance part by electromigration and/or electrosmosis under the influence of an electric field induced by an electrode.

REFERENCES:
patent: 4622124 (1986-11-01), Krusher
patent: 4631120 (1986-12-01), Pohl
patent: 4631122 (1986-12-01), Pohl
patent: 4859301 (1989-08-01), Brenner
patent: 4936974 (1990-06-01), Rose

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