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本文研究了VOSO_4还原-间接测定稀土氧化物中氧化镨的光度分析法.本法的摩尔吸收系数ε_(440)为2.18×10~4,在0—400μg Pr_6O_(11)/10ml范围内符合比尔定律.合成试样检验表明回收率在100.0—101.0%范围内.
In this paper, the photometric method for the determination of praseodymium oxide in rare earth oxides by VOSO 4 reduction-indirect determination is described.The molar absorption coefficient ε 440 of this method is 2.18 × 10 4, which is within the range of 0-400 μg Pr 6 O 11 / The test of synthetic samples showed that the recovery was in the range of 100.0-101.0%.