ElvaX Plus spectrometer is a desktop energy-dispersive X-ray fluorescence (EDXRF) analyzer with extended element range from Na (Z=11) to U (Z=92). The Helium purge system and the automatic primary filter changer combined with the large area SDD detector are used to allow effective registration of the light elements spectra. ElvaX Plus spectrometer is used for quantitative and qualitative analysis of the elemental composition of metal alloys, liquids, powders, food and biological samples, as well as samples deposited on surfaces or filters, in a wide range of element concentrations. Analyzer’s detecting limit is better than 1 ppm for most elements in a light matrix.