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A new method is presented for measuring of uranium at low levels in crude phosphoric acid without preconcentration or complexing agents using Dionex DX-500 ion chromatograph. Two isocratic elutions namely;… Click to show full abstract
A new method is presented for measuring of uranium at low levels in crude phosphoric acid without preconcentration or complexing agents using Dionex DX-500 ion chromatograph. Two isocratic elutions namely; 7 mM PDCA (for eluting the interfering cations) and 0.3 M (NH4)2SO4/0.1 M HCl (for uranium separation) with flow rate of 0.9 and 0.7 ml/min respectively. The optimized developed method has been validated by its application for the analysis of uranium in a certified sample (GBW04115).The developed method has been successfully applied to the determination of uranium in the prepared synthetic orthophosphoric acid and the crude phosphoric acid.
Journal Title: Journal of Radioanalytical and Nuclear Chemistry
Year Published: 2019
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