交流示波极谱滴定法测定单一稀土元素Yb的研究

Study on the Determination of Rare Earth Element Ytterbium by Alternating Current Oscillopolarography

在ｐＨ＝６．０的六次甲基四胺－ＨＮＯ３介质中，加入过量ＥＤＴＡ，用锌标准溶液进行返滴定，本法终点敏锐、快速、简便、重现性好．用于测定分离后的单一稀土或稀土元素总量，获得满意结果．

A alternating current oscillopolarography method for the determinated of rare earth elements is described, based on EDTA titration. The method is simple, rapid and sensitive. The end point of titration is clear. The proppsed procedure is applied successfully to the determination of rare earth element.