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Microdetermination of Thorium by Ion-Exchanger Phase Spectrophotometry with Dibromo-o-nitro-arsenazo

✍ Scribed by Y.L. Yang; C.G. Hsu; J.M. Pan


Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
211 KB
Volume
48
Category
Article
ISSN
0026-265X

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✦ Synopsis


lon-exchanger phase spectrophotometry with dibromo-o-nitroarsenazo has been developed for the determination of thorium. The linear range is (0-9 \mu \mathrm{g}) of thorium in (50 \mathrm{ml}) of solution by using (0.8 \mathrm{~g}) of resin with an apparent molar absorptivity of (7.19 \times 10^{5}). Uranium and rare earth elements in reasonable amounts do not interfere with the determination. The method has been applied successfully to determine thorium in waste water. 1993 Academic Press, Inc.