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Application of NOBIAS CHELATE resin for thorium separation from seawater
https://repo.qst.go.jp/records/69940
https://repo.qst.go.jp/records/69940f9b302d3-4418-46b4-b611-e8266ffedc57
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2009-11-13 | |||||
| タイトル | ||||||
| タイトル | Application of NOBIAS CHELATE resin for thorium separation from seawater | |||||
| 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_c94f | |||||
| 資源タイプ | conference object | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Takata, Hyoe
× Takata, Hyoe× Zheng, Jian× Tagami, Keiko× Aono, Tatsuo× Uchida, Shigeo× 高田 兵衛× 鄭 建× 田上 恵子× 青野 辰雄× 内田 滋夫 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Since thorium (Th) concentration in seawater is extremely low (ca. 1.0 ng/L), elimination of matrix elements and concentration of Th is necessary for its measurement. A NOBIAS CHELATE resin was evaluated for its ability of Th separation and preconcentration from water samples. We measured concentrations of Th in the eluted samples by inductively coupled plasma mass spectrometry (Yokogawa, Agilent 7500c). The NOBIAS CHELATE resin could completely recover Th at a pH range of 2-5 from Th spiked purified water samples. Then we used spiked seawater samples after adjusting their pH to 2.5 with hydrochloric acid; More than 95% recovery of Th was observed. Total procedural blank for Th was 0.02 ng/L using 50 mL of purified water (10-fold preconcentration, n = 3). The detection limits, defined as 3 times the standard deviation for the procedural blank, was 0.06 ng/L. Thus Th in seawater samples could be measured by the proposed method. | |||||
| 会議概要（会議名, 開催地, 会期, 主催者等） | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | International Workshop on Low-level Measurement of Radionuclides and Its Application to Earth and Environmental Sciences | |||||
| 発表年月日 | ||||||
| 日付 | 2009-11-06 | |||||
| 日付タイプ | Issued | |||||
