一、概述随着稀土元素的应用范围日益扩大,因此如何提高混合稀土分析方法的准确度,以及建立适应性广的分析方法,已成为当前混合稀土光谱分析的主要研究课题。由于稀土元素组成之间及共存元素的相互影响,形成了极为复杂的光谱和产生强烈的连续光谱背景,给分析工作带来严重的困难。目前各种大色散率的光栅光谱仪的普遍使用,为混合稀土的光谱分析提供了极为有利的条件。 I. Overview With the increasingly wide range of application of rare earth elements, how to improve the accuracy of mixed rare earth analysis methods, as well as the establishment of a wide range of analytical methods has become the current mixed rare earth spectral analysis of the main research topics. Due to the interaction between rare earth elements and coexisting elements, the formation of extremely complex spectra and the generation of a strong background of continuous spectra have caused serious difficulties in analytical work. At present, the widely used grating spectrometers with various dispersion rates provide extremely favorable conditions for the spectral analysis of mixed rare earths.