Electrokinetic packing of capillary columns

Details Electrokinetic packing of capillary columns Electrokinetic packing of capillary columns

1993-10-29

1995-09-26

Niebling, John

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

2041828, 204299R, 210656, 53473, B01D 5700

Patent

active

054531632

ABSTRACT:
Capillary columns are packed using electroosmotic flow (EOF) induced by an electrical double layer on the internal wall of a fused silica capillary and the electrophoretic mobility of positively-charged or negatively-charged particles of packing material. Electrokinetic packing is also applicable to uncharged packing particles. With this electrokinetic method several capillaries can be packed simultaneously. Electrokinetically packed capillary columns are useful for the separation of test mixtures and of pharmaceuticals in both electrochromatography and micro-HPLC.

REFERENCES:
patent: 4483773 (1984-11-01), Yang
patent: 5080771 (1992-01-01), Novotny et al.
patent: 5135627 (1992-08-01), Soane

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