A Study on the Analysis of 89Sr and 90Sr with Cerenkov Radiation and Liquid Scintillation Counting Method

첼렌코프광과 액체섬광계수법을 이용한 89Sr 및 90Sr 분석에 대한 연구

  • Received : 2001.10.05
  • Published : 2002.02.25


An accurate and simple analytical technique for $^{89}Sr$ and $^{90}Sr$, overcoming the demerits of the conventional method, has been developed with extraction chromatography and liquid scintillation counting. The Sr fraction was separated from hindrance elements with oxalate coprecipitation or cation exchange resin and purified with Sr-Spec column. With liquid scintillation counter, $^{89}Sr$ was measured by Cerenkov radiation method, and $^{90}Sr$ was measured by spectrum unfolding method. The developed radioactive strontium separation method was validated by application to the IAEA-reference material (IAEA-375, Soil) and radioactive waste samples.


$^{89}Sr$ and $^{90}Sr$;Cerenkov radiation;liquid scintillation counting


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