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当前稀土应用范围越来越广,尤其Dy2O3和金属Dy其出口量不断增大.Dy2O3中所含杂质总量通常在0.1%~5%之间,该范围内的测定方法以XRFR为合适,快速、准确、无破坏.1实验部分1.l原理本法采用粉末直接压片法制样,在各元素分析线峰位上测量X射线强度,根据待测元素的X射线
The current scope of rare earth is more and more widely used, in particular Dy2O3 and metal Dy its exports continue to increase. Dy2O3 impurities contained in the total amount of usually between 0.1% to 5%, the determination of the range of methods to XRFR for the appropriate, fast, accurate, non-destructive. 1 Experimental part 1. Principle l This method uses powder direct compression method sample preparation, the X-ray intensity measured in the peak position of each element analysis line, according to the element under test X-ray