Vacuum injection capillary electrophoresis

Details Vacuum injection capillary electrophoresis Vacuum injection capillary electrophoresis

1994-03-15

1995-09-05

Niebling, John

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

204299R, G01N 2726, G01N 27447

Patent

active

054476119

ABSTRACT:
In accordance with the present invention, a compliant pressure differential is applied across a separation column while its inlet is in a sample solution so that sample solution is introduced into the column. The profile of pressure differential over time is selected so that a desired volume of sample solution is introduced. Pressure and time are controlled with sufficient precision to yield repeatability of 5%, and preferably within 1%, by volume. The pressure differential is sufficiently low and the time sufficiently long that an acceptable velocity profile can be achieved.

REFERENCES:
patent: 5207886 (1993-05-01), Lauer et al.
patent: 5326445 (1994-07-01), Lauer et al.

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