微量锗的分析方法  

An analysis method for trace amount of germanium

作　　者：宋军[1] 邹家庆[1] 邓开元[1] 

机构地区：[1]南京化工大学化工学院,江苏南京210009

出　　处：《南京化工大学学报》2001年第6期27-31,共5页Journal of Nanjing University of Chemical Technology(Natural Science Edition)

摘　　要：以HClO4为支持电解质 ,没食子酸为络合剂 ,在示波极谱仪上对锗进行了测定。实验确定的最佳测定体系是 0 .1mol/LHClO4加 5 .0× 10 -4mol/L没食子酸的体系。锗测定的线性范围是 2 .0× 10 -6～ 5 .0× 10 -5mol/L。通过一系列实验证明了该体系形成的极谱波为配合吸附波。经实验测定 ,其配合物的配合比为 1∶2 ,电极反应转移电子数为 3.9。The determination of germanium was done on polarograph, in which HClO 4 was taken as support electrolyte, and gallic acid as complexing agent. The results showed that the best determination system was composed by 0.1 mol/L HClO 4 and 5.0×10 -4 mol/L gallic acid. The linear range of germanium determination was 2.0×10 -6 ～5.0×10 -5 mol/L. Through a series of experiments, it was proved that the polarograph wave formed in this system was a complexing adsorption wave. It was determined that the match ratio of complex compound was 1:2.

关 键 词：锗 HCLO4 没食子酸 配合吸附极谱 微量分析 测定 高氯酸 络合吸附波 

分 类 号：O614.431[理学—无机化学] O657.14[理学—化学]