Nuclear Engineering and Technology
- Volume 3 Issue 1
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- Pages.9-13
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- 1971
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- 1738-5733(pISSN)
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- 2234-358X(eISSN)
Strontium-90 Levels in Milk
- Park, Chan-Kirl (Health Physics Division, Atomic Energy Research Institute) ;
- Yang, Kyung-Rin (Health Physics Division, Atomic Energy Research Institute)
- Published : 1971.03.01
Abstract
The levels of strontium-90 in milk produced in Korea were determined during the past six years. Milk samples were collected from dairies and market shops in seoul area. Strontium-90 in milk was separated from calcium using fuming nitric acid and purified radiochemically. After seculear equilibrium was completed, the radioactivity of yttrium-90 was counted in a low background beta counting system. The determination of stable calcium in milk was also made by volu-metric method using 0. 1 N potassium permanganate solution. The highest value of 34.9 pCi
방사성 낙진에 의한 우리나라 식품의 오염도를 파악할 목적으로 우리나라의 우유중의 스트론튬-90의 양을 측정하였다. 스트론튬의 분석은 발연질산법에 의하였으며, 스트론튬 단위로 결과를 정리하기 위하여 칼슘의 함량도 동시에 정량하였다. 방사능의 측정은
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