FIELD: analytical chemistry. SUBSTANCE: method involves the use of chromatography column packed with sorbent made on the basis of carrier - "Polysorb-1", which contains additionally "Silipor-600". Ratio of components, % : "Polysorb-1" 25-35, and "Silipor-600" 75-65. Column is packed for about one/third length with "Polysorb-1" and "Silipor-600" - the rest. The latter sorbent is filled behind of "Polysorb-1" by gas flow. Analyzed specimen is put firstly on "Polysorb-1" and then - on "Silipor-600". EFFECT: improved method of assay. 6 dwg
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