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Method development for simultaneous determination of 237Np and Pu isotopes in seawater by SF-ICP-MS with a single column chromatographic separation
https://repo.qst.go.jp/records/80467
https://repo.qst.go.jp/records/804678c4848d5-6ac2-4cbf-9844-d750ee64b68b
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2020-09-11 | |||||
| タイトル | ||||||
| タイトル | Method development for simultaneous determination of 237Np and Pu isotopes in seawater by SF-ICP-MS with a single column chromatographic separation | |||||
| 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 |
Zhang, Shuai
× Zhang, Shuai× Yang, Guosheng× Zheng, Jian× Pan, Shaoming× Aono, Tatsuo× Zhang, Shuai× Yang, Guosheng× Zheng, Jian× Aono, Tatsuo |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Plutonium in seawater is a well-known tracer in biogeochemical processes with its particle-reactive properties. Recent studies evidenced that another transuranic isotope, 237Np (t1/2=2.14×106 y) has a similar behavior of 137Cs, thus shows great potential to act as a tracer for water mass circulation for decadal and longer time scales. However, information on 237Np presented in seawater, especially in open ocean is very scarce, the distribution and inventory of 237Np in the ocean remains largely unknown due to its low concentration in seawater and great analytical challenge for its measurement. Most methods for analysis of 237Np need a large volume seawater, tedious chemical separations, and long counting times in the radiometric methods of alpha spectrometry, and the expensive AMS devices. In this study, we present a new method for simultaneous determination of 237Np and Pu isotopes in seawater by SF-ICP-MS. 242Pu was employed as a non-isotopes yield tracer for 237Np and Pu isotopes. A single column anion-exchange (AG MP-1M) chromatography was used for chemical separation of 237Np and Pu isotopes from seawater matrix. This method was applied to determine the seawater samples collected from the Pacific Ocean for the first time. | |||||
| 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 | 日本放射化学会第64回討論会(2020) | |||||
| 発表年月日 | ||||||
| 日付 | 2020-09-10 | |||||
| 日付タイプ | Issued | |||||
