SIMULTANEOUS DETERMINATION OF URANIUM AND THORIUM IN HIGH-GRADE THORIUM ORES

Citation
S. Ahmad et al., SIMULTANEOUS DETERMINATION OF URANIUM AND THORIUM IN HIGH-GRADE THORIUM ORES, Journal of radioanalytical and nuclear chemistry, 170(1), 1993, pp. 165-170
Citations number
7
Categorie Soggetti
Chemistry Analytical","Nuclear Sciences & Tecnology","Chemistry Inorganic & Nuclear
ISSN journal
02365731
Volume
170
Issue
1
Year of publication
1993
Pages
165 - 170
Database
ISI
SICI code
0236-5731(1993)170:1<165:SDOUAT>2.0.ZU;2-L
Abstract
A routine procedure has been developed for the simultaneous determinat ion 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 preci sion and accuracy of the method has been determined by analyzing IAEA and NBL standard thorium/uranium ores.