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Journal of the Korean Chemical Society (대한화학회지)
- Volume 5 Issue 1
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- Pages.29-32
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- 1961
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- 1017-2548(pISSN)
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- 2234-8530(eISSN)
Rapid Determination of Cesium-137
$Cs^{137}$ 의 迅速定量法
- Kim, Tai-Soon (Radiochemical Laboratory, The Scientific Research Institute, M.N.D.) ;
- Park, Tai-Won (Radiochemical Laboratory, The Scientific Research Institute, M.N.D.) ;
- Lee, Chun-Yung (Radiochemical Laboratory, The Scientific Research Institute, M.N.D.) ;
- Seu, Kyung-Sook (Radiochemical Laboratory, The Scientific Research Institute, M.N.D.)
- 김태순 (國防部 科學硏究所 放射化學 硏究室) ;
- 박태원 (國防部 科學硏究所 放射化學 硏究室) ;
- 이춘영 (國防部 科學硏究所 放射化學 硏究室) ;
- 서경숙 (國防部 科學硏究所 放射化學 硏究室)
- Published : 19610700
Abstract
Two methods for the determination of Cesium-137 in various foods(ashes) were compared. The one comprises two steps, the first being the separation of alkalies as cobaltinitrites or perchlorates by the radiochemical method, and the second being the measurement of photopeak area due to the presence of Cs-137 by the use of scintillation spectrometer. The other method is the direct subjection of ash samples to the spectrometry without the radiochemical separation. The combined contribution of K-40 and Rb-87 to the spectrum was not found on account of the difference in energies of these nuclides. These two methods gave, a good agreement in the determination of Cs-137 in 50-100g ash samples of vegetables or cereals under investigation.
Keywords