| Project/Area Number |
15K18914
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Environmental and hygienic pharmacy
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| Research Institution | National Institute of Health Sciences |
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Principal Investigator |
SOGA KEISUKE 国立医薬品食品衛生研究所, 生化学部, 研究員 (50746336)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2015: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 放射線 / 食品 / 自由水 / 液体シンチレーション / α線スペクトロメトリー / トリチウム / トルエン共沸蒸留 / ポロニウム / 食品分析 / 放射能分析 / 食品衛生学 / 液体シンチレーション法 |
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| Outline of Final Research Achievements |
We explored the analytical method for beta-emitter, tritium and alpha emitter, polonium-210 using many kinds of foods in order to survey foods. Developed a method for tritium which includes a liquid scintillation counting and azeotropic distillation was practical and useful for safety assessment of foods, considering its good recovery, sensitivity, precision and simplicity. For polonium-210, we showed that the direct stainless disc electrodeposition method was practical for preparing samples in most foods. In addition, we examined the level of tritium or polonium-210 on the Japanese market. No tritium radioactivity was detected in analyzed foods, whereas polonium-210 radioactivity was detected in some foods such as fishes.
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