Abstract
The present paper deals with the determination of the thorium, uranium, plutonium and neptunium concentrations by the track method using the (γ, f) reaction.
A new highly sensitive track method of thorium (232Th) and neptunium (237Np) determination has been developed. The detection Umits are equivalent up to 1·10−13g of 232Th and 3·10−14 g of 237Np. The received results allow to estimate detection limits of 238U and239Pu at the level of 5·10−14 g and 2·10−14 g, respectively.
The method has been applied to the 232Th, 238U, 239Pu and 237Np determinations in water and soil samples and included the radioanalytical separation procedure of the nucUdes with following irradiation of the resultant samples by photons of the MT-25 microtron.
The method allows to work with small amounts of analyzed substance, that facilitates a realization of chemical operations on separation and isolation of elements, to investigate their behaviour in the environmental and biological objects on the more low detection limit.
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Maslov, O.D., Dmitriev, S.N., Molokanova, L.G., Gustova, M.V., Sabelnikov, A.V. (2001). Trace Element Analysis of Actinides in Natural Waters and Soils Using (γ, f) Reaction. In: Frontasyeva, M.V., Perelygin, V.P., Vater, P. (eds) Radionuclides and Heavy Metals in Environment. NATO Science Series, vol 5. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-0993-5_21
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DOI: https://doi.org/10.1007/978-94-010-0993-5_21
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