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Method for ultra-trace level 241Am determination in large size soil samples by SF-ICP-MS: with emphasis on the removal of spectral interferences and matrix effect
https://repo.qst.go.jp/records/47832
https://repo.qst.go.jp/records/47832144ad18c-1f83-4e37-9242-896a27835b47
| 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 | Method for ultra-trace level 241Am determination in large size soil samples by SF-ICP-MS: with emphasis on the removal of spectral interferences and matrix effect | |||||
| 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× Cao, Liguo× Tagami, Keiko× Uchida, Shigeo× 王 鍾堂× 鄭 建× 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 | A new analytical method using SF-ICP-MS was developed for the determination of 241Am in large soil samples to provide realistic soil-plant transfer parameter data for dose assessment of nuclear waste disposal plans. We investigated four subjects: extraction behaviors of interfering elements (Bi, Tl, Hg, Pb, Hf and Pt) on DGA-N resin; soil matrix element removal (Mg, Fe, Al, K, Na) using Fe(OH)3, CaF2 and CaC2O4 co-precipitations; Am and rare earth elements (REEs) separation on DGA-N and TEVA resins; and optimization of the Aridus II–SF-ICP-MS analytical system for Am determination. Our method utilized conc. HNO3 to leach Am from 2-20 g soil samples. The CaC2O4 co-precipitation was used to remove major metals in soil, and followed by Am/interfering elements separation using the proposed UTEVA+DGA-N procedure. After a further separation of REEs on TEVA resin, 241Am was determined by Aridus II–SF-ICP-MS. This method eliminated the matrix effect in ICP-MS 241Am measurement for large soil samples. The high decontamination factors (DFs) of interfering elements enable their thorough removal from Am fraction, and in particular, the DF of Pu (7 × 105) was the highest ever reported in 241Am studies; thus, this method is capable of analyzing 241Pu-contaminated FDNPP-sourced soil samples. A low detection limit of 0.012 mBq/g for 241Am was achieved. The chemical recovery of Am (76% -82%) was very stable for soil samples. This method can be employed for the low level 241Am determination in large size soil samples that are contaminated with 241Pu. | |||||
| 書誌情報 |
Analytical Chemistry 巻 88, 号 14, p. 7387-7394, 発行日 2016-05 |
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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.6b01934 | |||||
