摘要
在pH4.9~5.5 的NH4AC-HAC缓冲溶液中，可获得Ge(Ⅳ)-CPA-pN络合物的单扫描极谱吸附波。在适宜条件下，波高与锗浓度在1.38×10-7~4.60×10-5mol/L范围有线性关系，检出限为5.52×10-8,峰电位-0.78V(vs.SCE)，表观稳定常数为4.7×109。处理样品中籍蒸馏法分离出 GeCl4进行测定，结果满意。
The single scanning polarographic adsorption wave of Ge(IV)-CPA-pN complex is available in the buffer of NH_4Ac-HAc system at the pH value 4.9~5.5 . Under proper conditions, there is a linear relation between the wave height and the Ge concentration ranging from 1.38×10~7-4.60×10^(-5)mol/L ,with the detection limit 5.52×10-8mol/L,the peak potential -0.78V(vs.SCE) and the apparent steady constant 4.7×10~9, The satisfying results are obtained in the determination of GeCl4 of the sample, which is separated by distillation. The electrode process of the complex adsorption wave is studied.
出处
《四川轻化工学院学报》
2000年第4期62-65,共4页
Journal of Sichuan Institute of Light Industry and Chemical Technology
