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  1. 紀要論文
  2. 琉球大学理工学部紀要 理学編
  3. 14号
  1. 部局別インデックス
  2. 理学部

The Yield Study of Chemical Separation for the Thorium and Uranium Isotopes from Sea Sediments

http://hdl.handle.net/20.500.12000/23453
http://hdl.handle.net/20.500.12000/23453
ba6a92cc-47ec-432c-abf2-a0c78dcef31e
名前 / ファイル ライセンス アクション
No14p039.pdf No14p039.pdf
Item type デフォルトアイテムタイプ(フル)(1)
公開日 2012-02-28
タイトル
タイトル The Yield Study of Chemical Separation for the Thorium and Uranium Isotopes from Sea Sediments
言語 en
作成者 Taira, Hatsuo

× Taira, Hatsuo

en Taira, Hatsuo

平良, 初男

× 平良, 初男

ja 平良, 初男

アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
内容記述
内容記述タイプ Other
内容記述 Chemical separation methods of thorium and uranium isotopes from Ocean sediment samples have been studied in this work intensively. Following the separation of thorium isotopes by cation exchange resin from 3N-HCl solution, the uranium isotopes were extracted into mesityl oxide from 1N-HN0_3 solution satulated with LiN0_3 as a saltingout reagent. The uranium isotopes were then stripped into disthlled water and extracted again with TTA-benzen solution (0.2M TTA) adjusting the pH of the aqueous phase to 3.2 and by adding EDTA as a masking reagent. To study the chemical yield for entire separation techniques, the Th-234 and U-232 isotopes as tracers were added to the sample solution. The uranium isotopes were recovered from the samples by 56.7% on the average, ranging from 32% to 79% for six samples, and the thorium isotopes were recovered by 86.7% with which agrees well for Th-separations in the works reported by other investigators. The isotopes separated were determined by the ordinally alphaspectrometric method with the use of 200 channel pulse height analyzer and silicon surface barrier detector.
内容記述タイプ Other
内容記述 紀要論文
出版者
言語 ja
出版者 琉球大学理工学部
言語
言語 eng
資源タイプ
資源タイプ departmental bulletin paper
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
出版タイプ
出版タイプ NA
出版タイプResource http://purl.org/coar/version/c_be7fb7dd8ff6fe43
識別子
識別子 http://hdl.handle.net/20.500.12000/23453
識別子タイプ HDL
収録物識別子
収録物識別子タイプ NCID
収録物識別子 AN0025080X
収録物名
言語 ja
収録物名 琉球大学理工学部紀要. 理学編
書誌情報
号 14, p. 39-45
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