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Extraction-spectrophotometric determination of uranium with 4-(5'-methyl-3'-isoxazolylazo)-resorcinol

Journal Article · · Anal. Lett.; (United States)

An extraction-spectrophotometric method for uranium is developed based on the formation of the 1:1:1 ternary complex U(VI)/4-(5'-methyl-3'-isoxazolylazo)-resorcinol/cetylpyridinium, which allows the determination of down to 3 ppm of uranium (epsilon = 2.65 x 10/sup 4/ 1.mol/sup -1/.cm/sup -1/ at 510 nm). Interferences have been evaluated and the method is applied to U(VI) determination in sulfuric acid leaching method residues.

Research Organization:
Univ. of La Laguna (Spain)
OSTI ID:
6951220
Journal Information:
Anal. Lett.; (United States), Journal Name: Anal. Lett.; (United States) Vol. 21:5; ISSN ANALB
Country of Publication:
United States
Language:
English