Strontium-90 measurement in trace amount of hard tissues for distribution analysis

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

We demonstrated a method of $^{90}$ Sr measurement in small pieces of hard tissues with radioactivity measurement or ICP-MS measurement. Interference elements of the measurements were removed by chemical separation. We could determine $^{90}$ Sr in 0.1 g of hard tissues by radioactivity measurement method and ICP-MS method. Limit of detection of the ICP-MS method was lower than that of the radioactivity measurement. The ICP-MS method is adequate method for distribution analysis of $^{90}$ Sr in the hard tissues.

Language	:	Japanese
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Meeting title	:	日本放射化学会第64回討論会(2020)
Held date	:	2020/09
Location (city)	:	豊中(online)
Location (country)	:	日本
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Keywords	:	Sr-90; ICP-MS; 硬組織; 福島第一原子力発電所事故; Fukushima Daiichi Nuclear Power Station Accident
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Cooperating Institute	:	東京医科大学; 東北大学

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Registration No. : BB20200284
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