Extraction and Photometric Determination of Uranium(VI) by N-Phenyl-2-naphthohydroxamic Acid
- 1 December 1973
- journal article
- research article
- Published by Taylor & Francis in Separation Science
- Vol. 8 (6) , 709-714
- https://doi.org/10.1080/00372367308056065
Abstract
A new reagent, N-phenyl1–2-naphthohydroxamic acid (N-P-2-NHA), for the determination of microgram amounts of uranium(VI) is reported. Uranium is extracted from chloroform solution of N-P-2-NHA at pH 4.0 to 4.5. The orange-red, extract has maximum absorption at 515 nm. The extracted complex obeys Beer's law at 515 nm and the sensitivity is 0.01 μg U/cm2. The color is stable for 15 days. The effects of pH, reagent concentration, and diverse ions on extraction are discussed.Keywords
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