If_6_was_9 - 25-7-2004 at 08:13
Electrochromatography
This looks like a cross between electrophoresis and chromatography. Set up a 2-D chromatography system, put an electric field across one dimension
and you can separate things on a continuous basis.
US2875144
US2555487
GB716875
2-D chromatography without electric field:
US4313906