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我们曾提出并研究了钆-邻苯二酚紫(PV)的络合物吸附波。在NH_4Cl-(CH_2)_6N混合底液中,Gd~(3+)与邻苯二酚紫的络合物可以产生一个波形良好的吸附波,波峰位于-0.75V(SCE)处,Gd~(3+)浓度在1×10~(-6)—2×10~(-5)M范围内与波高有线性关系。但由于大部分三价稀土离子均有相似的作用,直接用于测定混合稀土中某一稀土元素的含量有困难,因此本文用纸色层法分离样品中混合稀土然后测定其中钆或钐的含量,并对底液中六次甲基四
We have proposed and studied the gadolinium-pyrocatechin violet (PV) complex adsorption wave. In NH_4Cl- (CH_2) _6N mixed solution, the complex of Gd 3+ with catechol violet can produce a good wave of adsorption wave with a peak at -0.75V (SCE), Gd ~ ( 3 +) has a linear relationship with wave height in the range of 1 × 10 -6 -6 × 10 -5 M. However, since most of the trivalent rare earth ions have a similar effect, it is difficult to determine the content of a rare earth element in the mixed rare earth directly. In this paper, the mixed rare earth in the sample is separated by the paper color layer method and then the content of gadolinium or samarium , And the end of the liquid six methyl four