锆铪的分别测定,由于分离上的困难,至今仍是分析化学中的尖端问题之一。为了分别测定其含量或锆铪比,分析工作者提出了许多方案,其中如光谱分析、同位素测定、热分析、质谱分析、按比重差异的计算方法都属于物理方法。这类方法多半适用于锆铪比很大或很小的试样,还有某些操作及设备上的局限性。化学法中间接法研究得不少。重要的有根据锆铪亚硒酸盐与经过煅烧该盐而得到的氧化物之间化合量差异计算出锆铪含量的方法、根据锆铪硫酸盐与经过 Determination of zirconium and hafnium, respectively, due to separation difficulties, is still one of the cutting-edge analytical chemistry problems. In order to determine their contents or zirconium-hafnium ratios, respectively, analysts have proposed many solutions. Among them, spectroscopic analysis, isotope analysis, thermal analysis, mass spectrometry, and calculation of differences in specific gravity are all physical methods. Most of these methods are suitable for large or small zirconium-hafnium samples, as well as some operational and equipment limitations. Indirect method has been studied a lot. Important methods are based on zirconium hafnium selenite and calcined salt obtained by the oxide between the chemical composition of the difference between the calculated amount of zirconium and hafnium zirconium hafnium sulfate according to the process