稀土元素用极谱分析,国内外工作都很少,原因是十七个稀土元素的化学性质十分相似,水溶液中稀土离子的还原电位大多数在氢离子放电之后,使得极谱法不宜作分析之用。现将我们自1977年以来与中国地质科学院分析室协作进行稀土极谱催化波的部分成果简报如下。 1.铕——它是稀土中的一个重要元素。极谱上在一般底液中有一个还原波(E_(1/2)=-0.67V Rare earth elements with polarographic analysis, work at home and abroad are few, because the chemical properties of seventeen rare earth elements are very similar, most of the reduction potential of rare earth ions in aqueous solution after the hydrogen ion discharge, making Polarography should not be analyzed use. Now we have cooperated with the analysis room of the Chinese Academy of Geological Sciences since 1977 to produce rare earth polarographic catalytic wave part of the results briefed as follows. 1. Europium - it is an important element in rare earths. There is a reduction wave (E_ (1/2) = - 0.67V in the general bottom liquid in the polarography