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铌与钽因在原子能工业等新技术部门应用已日见其重要,近年冶金生产增长甚为迅速,工业对其纯度要求亦日益提高。相应有关二元素的分析方法研究亦迅速发展,各国文献中陆续出现铌钽分析化学专题综述,唯有关纯铌与钽中杂质的测定方法尚缺乏总结。为进一步解决纯金属铌、钽的制备问题,并深入研究其性能及在各技术部门的应用,必须解决有关纯金属分析问题。本文简要回顾此一领域内已累集的文献资料,以便于将有关方法应用于实际分析工作,并对尚待解决的问题进行进一步的研究。铌钽分析化学奠基者席勒(Schoeller)在其经典研究中已注意纯化合物中杂质的测定问题。唯直至四十年代以前,工业对铌、钽及其他稀有金属未曾提出
As niobium and tantalum have become increasingly important in the application of new technologies such as the atomic energy industry, metallurgical production has enjoyed rapid growth in recent years, and its purity requirement has also been on the rise. Correspondingly, the research on the two-element analysis method has also been developed rapidly. The review of the topics of analytical chemistry of niobium and tantalum has been reported in various countries in the literature. However, the methods for the determination of impurities in pure niobium and tantalum are still lacking. In order to further solve the problem of preparation of pure metal niobium and tantalum, and further study its performance and application in various technical departments, the problem of pure metal analysis must be solved. This article briefly reviews the literature that has been collected in this area in order to facilitate the application of the methodology to practical analytical work and to further investigate the issues that remain to be solved. Schoeller, the founder of niobium tantalum analytical chemistry, has paid attention in his classic study to the determination of impurities in pure compounds. Until the forties, the industry had not raised niobium, tantalum and other rare metals