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Sequential separation of 90Sr, 241Am 239,240Pu and 238Pu by radioanalytical techniques
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2005, v.18 no.6, pp.469-474
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(2005). Sequential separation of 90Sr, 241Am 239,240Pu and 238Pu by radioanalytical techniques. Analytical Science and Technology, 18(6), 469-474.
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Abstract
This paper presents a quantitative method of sequential separation of 90Sr, 241Am and Pu radionuclides with an anion exchange resin and a Sr-Spec resin. The Pu isotopes were purified with an anion exchange resin. The americium and strontium fractions were separated from the matrix elements with an oxalate co-precipitation method. Americium fraction was separated from the strontium fraction with iron co-precipitation method and purified from lanthanides with anion exchange resin. Strontium-90 was purified from other hindrance elements with the Sr-Spec resin after oxalate co-precipitation. The measurement of Pu and Am isotopes was carried out by an α-spectrometer. Strontium-90 was measured by a liquid scintillation counter. The radiochemical procedure of 90Sr, 241Am and Pu radionuclides investigated in this study has been validated by application to IAEAReference soils.
- keywords
- sequential separation, <TEX>$^{90}Sr$</TEX>, <TEX>$^{241}Am$</TEX> and Pu isotopes, anion exchange resin, Sr-Spec resin
Reference
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(1991.) Analytical Methods of Uranium Science and Technology Agency in Japan,
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(1996) J. Anal. Chem. 51,
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(1991.171999.) Radionuclidesand Trace Elements in Soil Quantifying Uncertainty in Analytical Measurement,
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