Trace amounts of boron are determined in uranium oxides spectrophotometrically with curcumin after prior extraction with 2-ethylhexane-1,3-diol. The concentration range of the method is 0.1–5 µg of B per gram of U, with a standard deviation of 0.03 µg of B per gram of U. A low bias of 15% is observed in U3O8 reference standards.
K. R. Betty and G. T. Day, Analyst, 1986, 111, 455 DOI: 10.1039/AN9861100455
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