Abstract
A routine procedure has been developed for the simultaneous determination of uranium and thorium in high concentration thorium ores. INAA is used to determine the uranium and thorium concentration. However, for very low concentrations of uranium a radiochemical procedure based on the use of NPy/benzene as an extractant has to be employed. The precision and accuracy of the method has been determined by analyzing IAEA and NBL standard thorium/uranium ores.
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Ahmad, S., Mannan, A. & Qureshi, I.H. Simultaneous determination of uranium and thorium in high grade thorium ores. Journal of Radioanalytical and Nuclear Chemistry Articles 170, 165–170 (1993). https://doi.org/10.1007/BF02134587
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DOI: https://doi.org/10.1007/BF02134587