Method of regenerating gels for use in liquid chromatography

Details Method of regenerating gels for use in liquid chromatography Method of regenerating gels for use in liquid chromatography

1983-01-26

1984-10-02

Adee, John

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210656, 210670, B01D 1508

Patent

active

044746636

ABSTRACT:
This invention provides an industrially advantageous method of regenerating a large quantity of contaminated gels by treating a contaminated gel which has become less active in separation performance with an aqueous solution of a metallic salt or ammonium salt of thiocyanic acid, nitric acid, or hydrogen iodide having a concentration of from 30 weight % to saturation, at a temperature between 50.degree. and 120.degree. C., thereby effectively removing contaminants in the interstices among the gel particles or contaminants on the active points.

REFERENCES:
patent: 3749698 (1973-07-01), Lehmann et al.
patent: 3762948 (1973-10-01), Moaton et al.
patent: 3808124 (1974-04-01), Dziobkowski
Chromatographic and Allied Methods by Mikes, Pub. by John Wiley & Sons of N.Y., pp. 368 and 369.

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