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随着科学技术的发展,稀土元素已经广泛应用于原子能、冶金、电子、石油等领域。在新技术材料中例如发光材料,激光技术,新型玻璃,催化剂等稀土元素也获得重要用途。由于稀土元素具有良好的特性,目前已成为国防建设和国民经济建设中不可缺少的一种物质。稀土元素的外层电子结构相同,物理和化学的性质极为相似,因此分离和分析稀土元素比较难。根据稀土元素各种物理化学特性.在离子交换、溶剂苹取、络合物形成等方面研究出不少可供分析测定稀土元素的方法。仪器分析解决了高纯稀土中杂质的测定,并能快速地完成多个稀土组分的分析。这些分析方法已
With the development of science and technology, rare earth elements have been widely used in atomic energy, metallurgy, electronics, petroleum and other fields. In the new technology materials such as luminescent materials, laser technology, new glass, catalysts and other rare earth elements have also been of important use. Due to its good characteristics, rare earth elements have become an indispensable substance in national defense construction and national economic construction. The electronic structure of the outer layer of the same rare earth elements, the physical and chemical properties are very similar, so the separation and analysis of rare earth elements more difficult. According to a variety of physical and chemical characteristics of rare earth elements in the ion exchange, solvent extraction, complex formation and many other aspects for the analysis and determination of rare earth elements. Instrument analysis to solve the determination of impurities in high purity rare earth, and can quickly complete the analysis of multiple rare earth components. These methods of analysis have been