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High performance method for determination of Pu isotopes in soil and sediment samples by sector field inductively coupled plasma mass spectrometry
https://repo.qst.go.jp/records/47839
https://repo.qst.go.jp/records/4783982cd9ba9-e2f7-4b17-8325-13ed579746e7
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2017-04-26 | |||||
| タイトル | ||||||
| タイトル | High performance method for determination of Pu isotopes in soil and sediment samples by sector field inductively coupled plasma mass spectrometry | |||||
| 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 | journal article | |||||
| 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 |
Wang, Zhongtang
× Wang, Zhongtang× Zheng, Jian× Ni, Youyi× Men, Wu× Tagami, Keiko× Uchida, Shigeo× 王 鍾堂× 鄭 建× 倪 有意× 門 武× 田上 恵子× 内田 滋夫 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Artificial plutonium in the environment is extensively studied in radioecology (e.g. soil to plant transfer and radiological assessment) and geochemistry (e.g. sediment dating). In this study, a new chemical separation method was developed for rapid determination of Pu in soil and sediment samples, based on the following investigations: extraction behaviors of interfering elements (IEs, for ICPMS measurement) on TEVA resin; decontamination of U using TEVA, UTEVA and DGA resins and the impact of co-precipitation on Pu determination. The developed method consists of four steps: HNO3 leaching for Pu release; CaF2/LaF3 co-precipitation for the removal of major metals and U; the proposed TEVA+UTEVA+DGA procedure for the removal of U, Pb, Bi, Tl, Hg, Hf, Pt and Dy; and ICPMS measurement. The accuracy of this method in determining 239+240Pu activity and 239Pu/240Pu and 241Pu/239Pu atom ratios was validated by analyzing five standard reference materials (soil, fresh water sediment and ocean sediment). This method is characterized by its stable and high Pu recovery (90-97% for soil; 92-98% for sediment) and high decontamination factor of U (1.6 × 107) which is the highest reported for soil and sediment samples. In addition, the short analytical time of 12 h and the method detection limits, which are the lowest yet reported in literature, of 0.56 μBq g-1 for 239Pu, 1.2 μBq g-1 for 240Pu, and 0.34 mBq g-1 for 241Pu (calculated on the basis of a 1 g soil sample) allow the rapid determination of ultratrace level Pu in soil and sediment samples. | |||||
| 書誌情報 |
Analytical Chemistry 巻 89, 号 4, p. 2221-2226, 発行日 2017-01 |
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| 出版者 | ||||||
| 出版者 | ACS Publications | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1021/acs.analchem.6b04975. | |||||
