Determination of Relative Contents of Praseodymium Neodymium Metals and Fifteen RE Elements in Their Oxides

The relative contents of praseodymium neodymium metals and fifteen RE elements in their oxides are determinated by ICP-AES method.The recovery rate of praseodymium neodymium is between 99% and 100.4%,the RSD is less than 1%,the recovery rate of the rest thirteen rare earth elements is between 90% and 110%,the RSD is less than 5%.