Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1992-09-01
1993-08-31
Niebling, John
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
204299R, G01N 2726, G01N 27447, B01D 5702
Patent
active
052405788
ABSTRACT:
A capillary electrophoresis system has a sample tube from which a sample is injected into a capillary tube by introducing a gas thereinto through an on-off valve. In order to maintain its internal pressure constantly at a target level, the pressure inside the sample tube is monitored after the valve is closed, and the period of time during which the valve is opened is adjusted according to the difference between the maximum level, to which the internal pressure reaches, and an upper limit value predefined above the target level.
REFERENCES:
Stephen E. Moring et al "Analytical Aspects of a Automated Capillary Electrophoresis System" LC-GC, vol. 1, No. 1 (1990) 34-46.
G. Schomburg et al "Construction, Evaluation, and Analytical Operation of a Modular Capillary Electrophoresis Instrument" Chromatographia vol. 30, No. 1/2 (Jul. 1990) 7-15.
Niebling John
Shimadzu Corporation
Starsiak Jr. John S.
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