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  • P-ISSN 1225-0163
  • E-ISSN 2288-8985

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

Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2002, v.15 no.1, pp.20-25
Lee, Myung-Ho
Chung, Geun-Ho
Cho, Young-Hyun
Choi, Geun-Sik
Lee, Chang-Woo
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Abstract

An accurate and simple analytical technique for <TEX>$^{89}Sr$</TEX> and <TEX>$^{90}Sr$</TEX>, 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, <TEX>$^{89}Sr$</TEX> was measured by Cerenkov radiation method, and <TEX>$^{90}Sr$</TEX> 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.

keywords
<TEX>$^{89}Sr$</TEX> and <TEX>$^{90}Sr$</TEX>, Cerenkov radiation, liquid scintillation counting


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