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Direct Determination of Molybdenum in Simulated Nuclear Spent Fuels by Inductively Coupled Plasma Atomic Emission Spectrometry
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2000, v.13 no.3, pp.291-296
Choi,
K. S., Lee,
C. H., Park,
S. D., Park,
Y. S., &
Joe,
K.
S.
(2000). Direct Determination of Molybdenum in Simulated Nuclear Spent Fuels by Inductively Coupled Plasma Atomic Emission Spectrometry. Analytical Science and Technology, 13(3), 291-296.
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Abstract
The SIMFUEL which composition is similar to PWR nuclear spent fuels was dissolved with a acid digestion bomb. An analytical conditions of ICP-AES for the direct determination of molybdenum in the uranium matrices without separation process were investigated. Based on the effect of uranium on molybdenum intensity. the most optimum wavelengths of molybdenum were found to be 202.030 and 203.844 nm. However, the method of standard additions is applied to overcome the effects of changing background caused by analyzing the sample solutions containing high concentration of uranium and the standard calibration solutions. The relative error of two methods, direct and indirect measurements with cation exchange resin separation procedures, was less than 5%. Therefore it was possible for this procedure to directly measure molybdenum in uranium matrices without separation. And this method was also applied to the determination of several percent of molybdenum in a U-Mo alloy.
- keywords
- SIMFUEL, U-Mo alloy, Direct determination, Molybdenum, ICP-AES
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