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锆铪具有特殊的核性能和良好的抗蚀性、耐热性,被广泛应用于原子能、电子、机械等工业。随着现代科学技术的发展,对锆铪的测定不断提出新的要求。关于锆铪的光度分析已有综述和专著发表。1950年锆的比色试剂仅有菌素S、红紫素和醌茜素等几种,而到1961年就增加到十八种。近二十年来,由于一系列的偶氮胂Ⅲ、吡啶偶氮类和噻唑偶氮类化合物的合成和较早应用的三苯甲烷染料的新发展,再加上多元络合物的研究以及胶束增溶和溶剂萃取等的应用,使灵敏度高、选择性好的新
Zirconium hafnium has a special nuclear properties and good corrosion resistance, heat resistance, are widely used in atomic energy, electronics, machinery and other industries. With the development of modern science and technology, zirconium hafnium determination constantly put forward new requirements. Photometric analysis of zirconium and hafnium has been published and monographs published. 1950, the colorimetric reagent zirconium only Sulfin, purpurin and quinizarin several other species, and in 1961 increased to 18 species. In the recent two decades, due to the synthesis of a series of arsenazo III, pyridine azo and thiazole azo compounds as well as the new development of the earlier application of triphenylmethane dyes, Beam solubilization and solvent extraction applications, so that high sensitivity, good selectivity of the new