Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1988-07-06
1991-03-05
Tung, T.
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
2041822, 2041828, 2041833, 204299R, 210635, 210656, G01N 2726
Patent
active
049975366
ABSTRACT:
Solid phases such as capillary tubes or solid supports used in chromatography, and in particular electrophoresis, are treated with oxidizing or reducing agents as needed to maintain or restore surface electrical charges or the lack thereof, which become modified during electrophoresis as a result of action by system components in the separation medium or the solutes themselves. The treatment is used as a means of achieving reproducible electroosmotic bulk flow when desired or suppressing unwanted electroosmotic flow arising due to the accumulation of charges on the surface. The result is improved reproducibility of retention times and component separation.
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Ohms Jack I.
Osborne, Jr. James C.
Beckman Instruments Inc.
Harder Paul R.
Liu Wen
May William H.
Ryser David G.
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