Apparatus for capillary electrophoresis having an auxiliary elec

Chemistry: electrical and wave energy – Apparatus – Electrophoretic or electro-osmotic apparatus

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204603, 204604, 417 49, 417 50, G01N 2726, G01N 27447

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active

056607032

ABSTRACT:
Apparatus for capillary electrophoresis having an auxiliary electroosmotic pump. Following a conventional capillary electrophoresis system having a single power supply, a separation capillary, and an optical detector, a conductive membrane connects a second capillary to a second power supply. The second capillary and second power supply act together as an auxiliary electroosmotic pump capable of augmenting or inhibiting the bulk electroosmotic flow in the separation capillary. The apparatus can be used to optimize the stacking profile of the sample and, thus, improve the separation efficiencies for charged solutes.

REFERENCES:
patent: 3649499 (1972-03-01), Virtanen et al.
patent: 4459198 (1984-07-01), Mizuno et al.
patent: 5092972 (1992-03-01), Ghowsi
patent: 5169510 (1992-12-01), Lunte et al.
patent: 5181999 (1993-01-01), Wiktorowicz
patent: 5320730 (1994-06-01), Ewing et al.
patent: 5322607 (1994-06-01), Baer et al.
patent: 5358612 (1994-10-01), Dasgupta et al.
patent: 5358618 (1994-10-01), Ewing et al.
Dasgupta et al., "Electroosmosis: A reliable fluid propulsion system for flow injection Analysis" (Jun. 1994) pp. 1792-1798, Abstract printed Apr. 15, 1994.
Dasgupta, et al., Auxiliary Electroosmotic Pumping in Capillary Electrophoresis, Anal. Chem., vol. 66, No. 19, pp. 3060-3065 Oct. 1994.
Dasgupta, et al., Suppressed Conductometric Capillary Electrophoresis Separation Systems, Anal.Chem., vol. 65, pp. 1003-1011 Apr. 1993.
Dasgupta, et al., Electroosmosis: A reliable Fluid Propulsion System for Flow Injection Analysis, Anal. Chem., vol. 66, pp. 1792-1798 Jun. 1994.
Jorgenson, et al., Zone Electrophoresis in Open-Tubular Glass Capillaries, Anal. Chem, 53, pp. 1298-1302 Jul. 1981.
O'Shea, et al., Capillary electrophoresis with electrical chemical detection employing an on-column Nafion joint, J. of Chrom., 593, 1992, pp. 305-312. (no month).
Kok, Off-Column Detection with Pressure Compensation in Capillary Electrophoresis, Anal. Chem, 65, 1853-1860 Jul. 1993.
Jorgenson, et al., Science, Capillary Zone Electrophoresis, vol. 222, pp. 266-272 Oct. 1983.
Hayes, et al., Electroosmotic Flow Control and Surface Conductance in Capillary Zone Electrophoresis, American Chem. Soc., 65, pp. 2010-2013 Aug. 1993.
Datta, et al., Electrokinetic Dispersion in Capillary Electrophoresis, AIChE, vol. 36, No. 6, vol. 36, pp. 916-926 Jun. 1990.
Grushka, Effect of hydrostatic flow on the efficiency in capillay electrophoresis, Journal of Chromatography, 1991, 559, pp. 81-93. (no month).

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