The unique, 60 kV X-Ray tube of NEX DE devices can excite even REEs and other heavy elements where other instruments have limitation. The model can be equipped with autosampler, collimator, sample spinner and helium purge, also. It is suitable for a wide range of applications: metals, cement, ores, minerals, plastics, waste and so on. Both empirical calibration and fundamental parameters method can be used for the determinations.