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Abstract
Abstract A very simple method has been developed for the column chromatographic separation of uranium(VI) using poly(dibenzo-18-crown-6). The adsorption studies were carried out from hydrochioric acid medium in the concentration range of 0.5—10.0 mol dm−3. The adsorption of uranium(VI) started from 3.0 mol dm−3 hydrochloric acid and was quantitative from 5.5—10.0 mol dm−3 hydrochloric acid. Various eluting agents such as hydrobromic acid, perchloric acid, sulfuric acid, acetic acid were used for the elution of uranium(VI). The capacity of poly(dibenzo-18-crown-6) for uranium(VI) was found to be 2.5 mmol g−1 of crown polymer. Uranium(VI) was separated from large number of elements from the binary as well as from multicomponent mixtures. The method was applied to the analysis of uranium from real samples.
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