Axially adjustable-type column device

Details Axially adjustable-type column device Axially adjustable-type column device

1989-02-27

1990-05-22

Therkorn, Ernest G.

Liquid purification or separation

With means to add treating material

Chromatography

210656, 55386, B01D 1508

Patent

active

049275313

ABSTRACT:
To form a gel bed in a cylindrical column for liquid chromatography, a gel bed section is provided between upper and lower liquid-tight partition members, positioned apart from each other at upper and lower positions in the column. Liquid is continuously percolated downward through the gel bed section to form a gel bed in the gel bed section and a liquid pressure is applied onto the upper partition to move the partition member downward following a downward movement of the upper surface of the gel bed.

REFERENCES:
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patent: 3826373 (1974-07-01), Andreotti
patent: 3966609 (1976-06-01), Godbille
patent: 4350595 (1982-09-01), Gunkel
patent: 4361482 (1982-11-01), Teetz
patent: 4549584 (1985-10-01), Morin
patent: 4597866 (1986-07-01), Couillard
patent: 4627918 (1986-12-01), Saxena
patent: 4636315 (1987-01-01), Allen
patent: 4737292 (1988-04-01), Ritacco
patent: 4752391 (1988-06-01), Porsch
patent: 4769141 (1988-09-01), Couillard
patent: 4797209 (1989-01-01), Jackson
Snyder, Introduction to Modern Liquid Chromatography Second Edition, John Wiley & Son Inc. 1979, pp. 92-100.

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