Determination of strontium radioisotopes in soils |
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| Authors: | V. A. Ryabukhin M. P. Volynets B. F. Myasoedov I. M. Rodionova A. M. Tuzova |
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| Affiliation: | (1) V.I. Vernadsky Institute of Geochemistry and Analytical Chemistry, USSR Academy of Sciences, Moscow, USSR |
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| Abstract: | Summary A method is proposed for determination of radiostrontium in soils which is based on selective strontium separation by liquid-liquid extraction with dicyclohexano-18-crown-6 in chloroform, loading of the extract on a thin-layer plate and TLC separation of strontium and yttrium radioisotopes using a circular procedure. The method allows the separate determination of 89Sr and 90Sr. The strontium chemical yield is more than 90%, the detection limit is about 0.5 Bk/g, RSD is equal to 2–5%. |
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