SORPTION OF UO22+ IONS BY QUERCETIN IMMOBILIZED ON VARIOUS SUPPORTS

The absorption capacity for uranyl ions of natural polyphenolic flavon oid quercetin immobilized on various available and cheap supports (cot ton fabrics, Dacron, and silica gel of different brands) was studied, and the effect of Co-60 radiation on their sorption was evaluated. Sor ption of uranyl ions from aqueous solutions by quercetin immobilized o n various supports depends predominantly on the support nature, and th e highest effect is observed for cellulose supports impregnated with q uercetin in the oxidized form. The gamma-radiation (60Co) activates so rption of UO22+ on impregnated nonsterile gauze, and the best result i s provided by irradiation of nonsterile gauze directly in the querceti n solution.