| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2024-07-24 |
| タイトル |
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タイトル |
Characterization of typical transuranic nuclides in a reference fallout material using SF-ICP-MS |
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言語 |
en |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 著者 |
Yang Bo
Jian Zheng
Jian Zheng
Guosheng Yang
Ning Qin
Tagami Keiko
Uchida Shigeo
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
For the quality control in determining transuranic nuclides in fallout samples, this work first reported the 237Np activity concentration in a reference fallout material and further calculated the activity ratios of 237Np /239+240Pu and 237Np/241Am, and the atom ratio of 237Np/239Pu in it. The 237Np and Pu isotopes were separated and purified using AG MP-1M anion-exchange resin, quantified using 242Pu as an isotope dilution tracer, and determined by the SF-ICP-MS. The analytical method was validated by the analysis of 4 sediment reference materials. The activity concentrations of 237Np, 239Pu and 240Pu were (25.9 ± 0.6) × 10-3, 4.10 ± 0.01 and 2.89 ± 0.04 Bq/kg, respectively, in the investigated reference fallout material. The activity ratio of 237Np/239+240Pu (3.7 ± 0.1) × 10-3 was consistent with the global fallout evaluation value. Comparison of the 237Np/239+240Pu activity ratios between in the reference fallout material and in soils over several decades indicated that 237Np has stronger migration capability than Pu isotopes in soils because 237Np was depleted compared to reference fallout material. |
| 書誌情報 |
Journal of Environmental Radioactivity
巻 278,
p. 107506,
発行日 2024-09
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| 出版者 |
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出版者 |
Elsevier |
| DOI |
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識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.1016/j.jenvrad.2024.107506 |
