硫化镉中游离镉和氧化镉的测定文献上报导很少。由于在大量的硫化镉中测定微量的游离镉和氧化镉,这就要求不能溶解样品而进行物相分析。有报导用空心阴极光谱法测定游离镉,但是仪器装置复杂,不适宜作控制分析。本文参阅了ТУманов的工作,研究了升华法测定游离镉的条件,同时根据氧化镉在氢气中还原的特性,用还原升华法测定氧化镉,均获得了较好的结果。 Determination of cadmium and cadmium sulfide cadmium sulfide in the literature reported little. Due to the determination of traces of free cadmium and cadmium oxide in a large amount of cadmium sulfide, this requires phase analysis without dissolving the sample. It has been reported that hollow cadmium is measured by hollow-cathode spectroscopy, but the apparatus is complicated and unsuitable for control analysis. In this paper, the work of ТУманов was reviewed. The conditions of sublimation determination of free cadmium were studied. Meanwhile, the results of reduction and sublimation of cadmium oxide were obtained according to the characteristics of cadmium oxide reduction in hydrogen.