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  • P-ISSN 1225-0163
  • E-ISSN 2288-8985

Quantitative Analysis of Trace Metals in Lithium Molten Salt by ICP-AES

Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2000, v.13 no.3, pp.309-314
Kim, Do-Yang
Pyo, Hyung-Yeal
Park, Yong-Joon
Park, Yang-Soon
Kim, Won-Ho
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Abstract

The quantitative analysis of various trace metals including fission products in lithium molten salts has been performed using a inductively coupled plasma atomic emission spectrometer (ICP-AES). The spectral interferences of lithium content, 500, 1,000 and 2,000 mg/L, in the sample solution were investigated using an optimum wavelength for the respective metal species. As a result, the line intensities for Y, Nd, Sr, and La had no influences from the lithium content up to 2,000 mg/L, while Mo, Ba, Ru, Pd, Rh, Zr and Ce showed spectral interferences of 10% to 50%. The group separation of metals from lithium in the molten salts solution was carried out by adding ammonia water into the solution. The recovery of Ru, Y, Rh, Zr, Nd, Ce, La and Eu was found to be over 90%, while Mo, Ba, Pd, and Sr provided low recovery percentages.

keywords
Lithium molten salt, ICP-AES, Analysis of fission product, Group separation


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