鉱石中のウランの定量
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概要
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Determination of small amounts of uranium in uranium are and phosphate rock was attempted by a colorimetric methcd using hydrogen peroxide after the separation of the uranium with a cellulose column. Conditions of color development and separation were investigated, and a suitable procedure was established. Uranium is separated chromatographically from the large quantities of other elements by eluting ether solvent through a cellulose column. The eluent containing uranium is almost free of interfering elements for the colorimetric determination by means of peroxide. Interference of large amounts of phosphate in the elution of uranium can be avoided by adding ferric salts to mask the phosphate. in general, ores containing more than 0.01% U<SUB>3</SUB>O<SUB>8</SUB> can be analyzed by this method with good results. The time required for analysis is about 45 hours.
- 社団法人 日本分析化学会の論文