Application Note

Direct Determination of Trace Rare Earth Impurities in High-Purity Europium Oxide using the NexION 5000 ICP-MS


Rare earth elements (REEs) exhibit many optical, electrical, and magnetic properties, and therefore play an irreplaceable role in high-tech photoelectromagnetic materials. At present, the widely used color TV phosphors, Ni-H batteries, high-performance magnetic materials, etc. are all examples of rare earth elements in high-tech applications. The application of high-purity REEs is mainly concentrated in luminescent materials as well as high-tech fields of electronic as well as giant magnetostrictive materials.

High-purity europium oxide (Eu2O3) is used to make color powder, energy-saving lamp powder, self-luminous powder, etc., for displays. The high-definition display (HDP) currently being developed and used requires higher purity and particle size, and its demand is also greater. Therefore, high-purity rare earth analysis and detection technology is also facing technological innovation as the application demand increases.

This work demonstrates the direct determination of 14 REEs in high-purity Eu2O3 with the NexION® 5000 Multi-Quadrupole ICP-MS by eliminating matrix-based interferences.