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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/20.500.12000/23453ba6a92cc-47ec-432c-abf2-a0c78dcef31e
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
No14p039.pdf
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| 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
× 平良, 初男
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| 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 | ||||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | 紀要論文 | |||||||||
| 出版者 | ||||||||||
| 出版者 | 琉球大学理工学部 | |||||||||
| 言語 | ja | |||||||||
| 出版者 | ||||||||||
| 出版者 | Science and Engineering Division, University of the Ryukyus | |||||||||
| 言語 | en | |||||||||
| 言語 | ||||||||||
| 言語 | eng | |||||||||
| 資源タイプ | ||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||
| 資源タイプ | departmental bulletin paper | |||||||||
| 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 | ||||||||||
| 収録物名 | 琉球大学理工学部紀要. 理学編 | |||||||||
| 言語 | ja | |||||||||
| 収録物名 | ||||||||||
| 収録物名 | Bulletin of Science & Engineering Division, University of Ryukyus. Mathematics & natural sciences | |||||||||
| 言語 | en | |||||||||
| 書誌情報 |
号 14, p. 39-45, 発行日 1971-04-01 |
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