Khater M M, Korkisch J
Analytical Institute, University of Vienna, IX Währingerstrasse 38, Austria.
Talanta. 1971 Oct;18(10):1001-4. doi: 10.1016/0039-9140(71)80171-6.
The batch distribution coefficients of Cu(II), Za, Cd, Fe(III), Hg(II), Mg, Co(II), Ni, Pb, Ca and Bi were determined on the strongly acidic cation-exchange resin Dowex 50 x 8 in 0.1M trioctylphosphine oxide in tetrahydrofuran-5% 12M nitric acid. In this mixture all these metal ions, except Bi, have high K(d)-values and can be separated quantitatively from uranium which has a distribution coefficient of 0.1. Mixtures of U with Cu, Ni, Co, Cd or Fe were analysed to test the applicability of such separations. Different titrimetric and spectrophotometric methods were used to determine the elements subsequent to their separation from uranium on ion-exchange columns. The results show that accurate and effective separations can be achieved.
在0.1M三辛基氧化膦的四氢呋喃 - 5% 12M硝酸溶液中，在强酸性阳离子交换树脂Dowex 50 x 8上测定了Cu(II)、Zn、Cd、Fe(III)、Hg(II)、Mg、Co(II)、Ni、Pb、Ca和Bi的批次分配系数。在该混合物中，除Bi外，所有这些金属离子都具有较高的K(d)值，并且可以与分配系数为0.1的铀进行定量分离。分析了U与Cu、Ni、Co、Cd或Fe的混合物，以测试这种分离方法的适用性。在离子交换柱上从铀中分离出这些元素后，使用了不同的滴定法和分光光度法来测定这些元素。结果表明，可以实现准确有效的分离。
