Atomic Absorption Determination of Titanium and Vanadium in Uranium Concentrates
作者： Daniel A. Batistoni , Patricia N. Smichowski
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摘要: An atomic absorption procedure was developed for the determination of titanium and vanadium in medium-purity uranium products (yellow-cakes). Samples equivalent to 4 g were dissolved 5.5 M nitric acid. Titanium separated from matrix by column extraction chromatography with use tri-n-butyl phosphate (TBP) supported on polytrifluorochloroetylene (Kel-F)® powder. A nitrous oxide-acetylene flame employed estimate concentration analytes phase. The precision about 3% relative standard deviation both elements, detection limits 60 μg/g Ti 30 V. influence Al, Fe, PO43- measured absorbance values mutual interferences effects between V investigated.
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