オキシン抽出光度法によるウラン中のモリブデンの定量

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タイトル別名
  • Spectrophotometric determination of molybdenum in uranium with 8-quinolinol
  • オキシン チュウシュツ コウドホウ ニ ヨル ウラン チュウ ノ モリブデン ノ テイリョウ

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説明

A rapid spectrophotometric method for molybdenum, based on the extraction with chloroform as the 8-quinolinate has been developed. Extration of uranium is prevented by the use of a definite amount of fluoride ion as a masking agent (250 mg of fluoride ion for each 1 gram of uranium). In this condition, optimum pH range for the extraction of molybdenum is from 3.0 to 5.5. Common impurities are tolerated at reasonable levels ; all other metals which are apt to accompany with molybdenum can readily be eliminated by washing the extract with an oxalic acid solution (0.1M, pH 1).<BR>The method is accurate and rapid for the determination of molybdenum in uranium metal down to 0.5 ppm, and can also be applied to the analysis of uranium oxides or yellow cake containing relatively large amounts of molybdenum.

収録刊行物

  • 分析化学

    分析化学 11 (1), 47-51, 1962

    公益社団法人 日本分析化学会

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