Journal of Nuclear and Radiochemical Sciences
Online ISSN : 1883-5813
Print ISSN : 1345-4749
ISSN-L : 1345-4749
Rapid isolation method for radioactive strontium using Empore™ Strontium Rad Disk
Zijian ZhangKazuhiko NinomiyaNaruto TakahashiTakashi SaitoKazuyuki KitaYoshiaki YamaguchiAtsushi Shinohara
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2016 Volume 16 Pages 15-21


A rapid and convenient chemical separation method for determining 90Sr activity in aerosol samples using Empore™ Strontium Rad Disks was established. The method employ ed solid-phase extraction and ion-exchange chromatography, and achieved a Sr yield of > 80%. Furthermore, it completely eliminated 210Pb, which interferes with 90Sr radiation counting. Sample pretreatment, chemical separation and Cherenkov light measurement required approximately 4 h, 2.5 h, and 14 days, respectively, to achieve a detection limit of 0.004 Bq. Using the developed method, the 90Sr concentration and 90Sr/137Cs activity ratio in aerosol samples collected after the Fukushima nuclear accident were determined.

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© 2016 The Japan Society of Nuclear and Radiochemical Sciences
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