Yuanxian Xia, Luona Chen. Spectrophotometric determination of uranium in aqueous phase by chlorophosphonazo-mA[J]. Nuclear techniques, 1987, 10(3): 43-44,63.
Yuanxian Xia, Luona Chen. Spectrophotometric determination of uranium in aqueous phase by chlorophosphonazo-mA[J]. Nuclear techniques, 1987, 10(3): 43-44,63.DOI:
In this paper the spectrophotometric method for determination of trace amount of uranium in weak acidic medium by chlorophosphonazo-mA is described. The composition of the complex was estimated to be 1:1 by slope ratio method. The apparent molar absorption of uranium at 690 nm is 1×10
5
. Beer's law is obeyed for 0—12.0 µg of uranium in 10ml solution. The coefficient of variation for uranium is 0.75%. The method has been applied to the determination of trace amounts of uranium in the extraction process of uranium
and the determination of
233
U from neutron irradiated ThO
2
.
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references
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