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Determination of plutonium isotopes in freshwater lake sediments by ICP-SF-MS after separation using ion-exchange chromatography
https://repo.qst.go.jp/records/69169
https://repo.qst.go.jp/records/691691bbade68-18ee-4164-a3e6-1cd3692d9c7e
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2007-11-19 | |||||
| タイトル | ||||||
| タイトル | Determination of plutonium isotopes in freshwater lake sediments by ICP-SF-MS after separation using ion-exchange chromatography | |||||
| 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 |
Liao, Haiqing
× Liao, Haiqing× Zheng, Jian× Wu, Fengchang× Yamada, Masatoshi× Kusakabe, Masashi× Ｌｉａｏ Ｈａｉｑｉｎｇ× 鄭 建× 山田 正俊× 日下部 正志 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | It is important to understand the distribution and fate of Pu in lakes due to their radiation threat and high chemical toxicity, since many lakes are the source of drinking-water. Moreover, studies indicated that Pu is useful for establishing deposition chronology of lakes, which has been commonly studied using 210Pb and 137Cs. However, differing from the analysis of 137Cs, samples must be destroyed during the analysis of Pu. Thus, a precise method with small sample size is always preferable for the determination of Pu in lake sediments. We report a simple and accurate Pu analytical method using ICP-SF-MS combined with chromatographic separation and purification for the studies of recent aquatic sedimentation. An anion exchange resin (AG MP-1M) was used to purify Pu isotopes. The chemical yield was ca. 64 %. For SRM4354, Pu activity of 3.90 mBq/g agrees well with the certified value. However, the mean 240Pu/239Pu atom ratio of 0.144 was lower than those reported by other laboratories. Considering the fact that those reported values were different from each other, our results suggest that this material may be isotopically inhomogeneous. The developed analytical method was applied to analyze Pu isotopes in sediment samples of Lake Poyang, East China. |
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| 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 | 日本放射線影響学会第50回大会 | |||||
| 発表年月日 | ||||||
| 日付 | 2007-11-17 | |||||
| 日付タイプ | Issued | |||||
