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木文研究了以4-(2′—噻唑偶氮)二羟基苯乙酮肟作试剂,用二阶导数分光光度法同时测定铀和钍,该法可测定0×10~(-6)—10.0×10~(-6)的铀和钍,相对误差<4％。普通阴离子和阳离子即使大量存在也不干扰测定。然而,过渡金属离子即Cu、Nu、Pd和Pt容限<100×10~(-6)。
In this paper, we studied the simultaneous determination of uranium and thorium by the second derivative spectrophotometry using 4- (2’-thiazolylazo) dihydroxyacetophenone oxime as a reagent. The method can be used for the determination of 0 × 10 -6 - 10.0 × 10 ~ (-6) of uranium and thorium, the relative error of <4%. Common anions and cations do not interfere with the assay even in large quantities. However, the transition metal ions Cu, Nu, Pd and Pt have a tolerance of <100 × 10 -6.