One-step preparation of separation media for reversed-phase chro

Details One-step preparation of separation media for reversed-phase chro One-step preparation of separation media for reversed-phase chro

1996-06-14

1997-07-15

Therkorn, Ernest G.

Liquid purification or separation

With means to add treating material

Chromatography

2105021, 210635, 210656, 95 88, 96101, 502439, B01D 1508

Patent

active

056479794

ABSTRACT:
A separation medium for reversed-phase chromatography is prepared by polymerizing an aqueous vinyl monomer mixture to which a hydrophobic alkyl methacrylate with 3 or more carbon atoms in the alkyl group and a detergent have been added. The further inclusion of a vinyl monomer with a charged group in the reaction mixture produces a separation medium useful for reversed-phase electrochromatography. Performance of the polymerization in a capillary produces a continuous bed inside the capillary. An alternative for non-capillary separations, such as those conducted in larger diameter tubing, is the preparation of the medium in a vessel outside the tubing, followed by granulation of the polymer and placement of the granules in the tubing.

REFERENCES:
patent: 4135892 (1979-01-01), Coupek
patent: 4281233 (1981-07-01), Coupek
patent: 4497710 (1985-02-01), Wagu
patent: 4696745 (1987-09-01), Itagaki
patent: 5334310 (1994-08-01), Frechet
patent: 5522994 (1996-06-01), Frechet

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