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Thorium isotope fractionation in the dissolution of inorganic samples by a microwave method
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J. C. Lozano
Published/Copyright:
September 25, 2009
Several procedures of general application for the total dissolution of inorganic samples using a microwave oven were studied in detail. They were applied to the determination of thorium isotopes by alpha spectrometry. This study revealed the existence of various stages during the process of digestion that led to an apparent differential behaviour of the isotopes of thorium, so that the original isotopic composition of the sample was completely lost. We introduced changes in the dissolution procedures which resulted in good agreement between the experimentally determined and the true isotopic ratios.
Published Online: 2009-9-25
Published in Print: 2001-10-1
© 2015 Oldenbourg Wissenschaftsverlag GmbH, Rosenheimer Str. 145, 81671 München
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- Supercritical fluid extraction of plutonium and americium from soil using thenoyltrifluoroacetone and tributylphosphate complexation
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- Diffusion of 99Tc in granite: A small scale laboratory simulation experiment
- Migration of 99Tc in unsaturated Chinese loess under artificial rainfall condition: an in situ test
- Separation and speciation of fission products by zirconium phosphate prepared by solid-solid reaction
- Interaction study between Ca2+ and humic acids in brine media
- 223Ra for endoradiotherapeutic applications prepared from an immobilized 227Ac/227Th source
