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Rapid analysis of $$^{90}$$Sr in cattle bone and tooth samples by inductively coupled plasma mass spectrometry

ICP-MSによるウシの骨や歯に含まれる$$^{90}$$Srの迅速分析法

小荒井 一真 ; 松枝 誠 ; 青木 譲; 柳澤 華代*; 寺島 元基 ; 藤原 健壮 ; 木野 康志*; 岡 壽崇  ; 高橋 温*; 鈴木 敏彦*; 清水 良央*; 千葉 美麗*; 小坂 健*; 佐々木 啓一*; 関根 勉*; 福本 学*; 篠田 壽*; 北村 哲浩  ; 阿部 寛信 

Koarai, Kazuma; Matsueda, Makoto; Aoki, Jo; Yanagisawa, Kayo*; Terashima, Motoki; Fujiwara, Kenso; Kino, Yasushi*; Oka, Toshitaka; Takahashi, Atsushi*; Suzuki, Toshihiko*; Shimizu, Yoshinaka*; Chiba, Mirei*; Osaka, Ken*; Sasaki, Keiichi*; Sekine, Tsutomu*; Fukumoto, Manabu*; Shinoda, Hisashi*; Kitamura, Akihiro; Abe, Hironobu

ウシの硬組織用の$$^{90}$$Sr分析法をICP-MS用いて開発した。0.1gの硬組織に対して、従来の放射能測定法より低い検出下限値で、11時間での分析を可能とした。そのため、ICP-MS法は微小な骨や歯試料を対象とした迅速かつ有効な分析手法となり得る。

Rapid analysis of $$^{90}$$Sr in bone and tooth samples of cattle were achieved by an inductively coupled plasma mass spectrometry (ICP-MS) coupled with mass shift and solid phase extraction techniques. Limit of detection (LOD) in the ICP-MS measurement of 0.1 g samples was lower than that of the radioactivity measurement. Analytical time of the ICP-MS method was reduced from 20 days to 11 hours, compared with the radiometric method. Therefore, the ICP-MS method can be rapid and useful procedure of $$^{90}$$Sr in small bone and tooth samples derived from terrestrial animals.

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分野:Chemistry, Analytical

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