| Project/Area Number |
24550073
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Inorganic chemistry
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| Research Institution | Kanazawa University |
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Principal Investigator |
UESUGI Masaki 金沢大学, 理工研究域, 研究協力員 (00622094)
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| Co-Investigator(Kenkyū-buntansha) |
NAKANISHI Takashi 金沢大学, 学内共同利用施設, 名誉教授 (00019499)
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| Co-Investigator(Renkei-kenkyūsha) |
YOKOYAMA Akihiko 金沢大学, 理工研究域, 教授 (80230655)
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| Research Collaborator |
WATANABE Yoshihiro
SAKAI Hiroaki
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | 放射性ストロンチウム / 迅速分析法 / 福島第一原発事故 / リン酸塩沈殿法 / 液体シンチレーション / Sr-Rad disk / Sr-90 / Sr-89 / 福島原発事故 / 汚染対策 / β線スペクトル / Sr-Ｒａｄ ｄｉｓｋ |
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| Outline of Final Research Achievements |
Radiostrontium (Sr-89,Sr-90) in the waste water has been continuously released to the ocean from the port of Fukushima daiichi NPP after nuclear accident. A new method for the determination of radiostrontium in seawater samples has been developed for rapid monitoring of seawater. The concentration and purification steps of Sr, in combination with Sr Rad Disk which was not supposed to be applicable to seawater, allow seawater sample aliquot up to 1 L to be analyzed in 3.5 hours.The total Sr-89+Sr-90 activity is determined by liquid scintillation counting with extraction scintillator. The method is successful to reduce the analytical time including measurments from a month to a day.
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