Chemistry: electrical and wave energy – Apparatus – Coating – forming or etching by sputtering
Patent
1988-12-02
1991-01-15
Niebling, John F.
Chemistry: electrical and wave energy
Apparatus
Coating, forming or etching by sputtering
2041801, 2041833, G01N 2728, G01N 2726, B01D 5702
Patent
active
049851292
ABSTRACT:
A capillary tube for use in high performance capillary electrophoresis is enclosed in a cartridge of generally planar configuration, formed by two flat plates joined together along raised edges to define a shallow enclosed chamber to retain the looped capillary tube, the plates having aligned windows between which a segment of the capillary tube passes, thereby forming a light path for zone detection. The termini of the capillary are embedded in fittings extending from the exterior of the cartridge, which mate with complementary fittings on inlet and outlet blocks which contain buffer reservoirs with controlled hydrostatic heads. The inlet block is specially equipped with ducts and fittings to permit filling of the capillary, injection of the sample into the capillary, changing of the solution in the buffer reservoir, and flushing out of the entire block without disconnecting the block from the capillary cartridge. By securing the cartridge containing the capillary tube into its holder, the capillary tube is correctly aligned in the detector light path.
REFERENCES:
patent: 3998714 (1976-12-01), Deml et al.
patent: 4676897 (1987-06-01), Kuze et al.
Verhaggen, P.E.M., "Simple Sampling Device for Capillary Isotachophoresis and Capillary Zone Electrophoresis", Journal of Chromatography, 452(1988), 614-622.
Bio-Rad Laboratories, Inc.
Niebling John F.
Starsiak Jr. John S.
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