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- E-ISSN 2288-8985
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Determination of trace actinide(Am, Pu, Th, U) using alpha spectrometry and neutron activation analysis
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2004, v.17 no.4, pp.302-307
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(2004). Determination of trace actinide(Am, Pu, Th, U) using alpha spectrometry and neutron activation analysis. Analytical Science and Technology, 17(4), 302-307.
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Abstract
Determination of actinides in the environmental sample requires separation of each element. This procedure is tedious and time consuming. And also, the detection limits of some nuclides using alpha spectrometry are rather higher. To overcome the lower detection limit and complicated separation procedure, a simple analytical technique for the determination of actinide isotopes in the environmental samples was developed and applied to IAEA and NIST reference sediment samples. For the separation of actinides from matrix, anion exchange resin and TRU-spec extraction chromatography resin were used and chemical yields were obtained using natural uranium, thorium, 242Pu and 243Am tracers. For overcoming the higher detection limits of U and Th in alpha spectrometry, neutron activation analysis was applied. Using combined method, the detection limit was increased about 10 times. The activity values of each isotope were consistent with the reference values reported by IAEA and NIST.
- keywords
- Radiochemical analysis, Actinide, Neutron activation analysis
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