高純度セレン中のタリウムの定量

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書誌事項

タイトル別名
  • Determination of thallium in high purity selenium
  • コウジュンド セレン チュウ ノ タリウム ノ テイリョウ
  • Studies on the analytical methods of trace impurities in high purity substances. VI
  • 高純度物質中の微量不純分の分析方法に関する研究(第6報)

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説明

Chemical analysis of T1 in high purity selenium was studied, whereby the most simple and sensitive method for separation and determination of micro amounts of T1 is established.<BR>Sample is decomposed by nitric acid, sulfuric acid and potassium sulfate, and Se is eliminated by evaporation. The residue is dissolved in hydrobromic acid and T1 is extracted by isopropylether. From the extract, to which is added an aqueous solution of rhodamine B and fully shaken, T1 determined spectrophotometrically.<BR>Determination of T1 down to a content of 0.1 ppm is easily carried out within about 2 hours.

収録刊行物

  • 分析化学

    分析化学 10 (2), 102-106, 1961

    公益社団法人 日本分析化学会

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