Method of regenerating gels for use in liquid chromatography

摘要

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 DEG and 120 DEG C., thereby effectively removing contaminants in the interstices among the gel particles or contaminants on the active points.