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Indian Journal of Chemical Technology (IJCT) >
IJCT Vol.19 [2012] >
IJCT Vol.19(6) [November 2012] >
| Title: | Determination of uranium and thorium in zircon by energy dispersive X-ray fluorescence technique |
| Authors: | Natarajan, V
Porwal, N K
Godbole, S V |
| Keywords: | Energy dispersive x-ray fluorescence technique
Thorium
Uranium
Zircon |
| Issue Date: | Nov-2012 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | An energy dispersive X-ray fluorescence method has
been developed for the determination of uranium and thorium in zircon, using
synthetic powder standards containing uranium and thorium in the range 50 -
1000 ppm. After optimization of instrumental parameters, calibration is carried
out using six synthetically prepared standards in pellet form. The experimental
limits of detection for uranium and thorium analytes are found to be 200 and
100 ppm respectively. The accuracy of the method has been evaluated by
measuring the concentration of uranium and thorium in two synthetic samples and
is found to be about ± 5%.
Three ore samples have been analyzed by the proposed method and by gamma
spectrometry and/or neutron activation analytical techniques for uranium and
thorium. The standardized method can be used for fast determination of uranium and
thorium in zircon samples non-destructively with a precision of ± 5 - 20%.
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| Page(s): | 399-402 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-0991 (Online); 0971-457X (Print) |
| Source: | IJCT Vol.19(6) [November 2012]
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