FIELD: recovery of efficiency of chromatographic columns lost in the process of service.
SUBSTANCE: recovery of the full efficiency of columns for highly effective liquid chromatography is effected by treatment by carbon dioxide in a supercritical state. The column is treated at a pressure of 250 atm., temperature within 120 to 140 deg.
EFFECT: accelerated and reduced price of the recovery of the efficiency of columns without their disassembly.
4 cl, 1 dwg, 3 ex
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