Handheld / portable X-ray fluorescent (XRF) analyzers have the capability to non-destructively quantify or qualify nearly any element from Magnesium to Uranium, depending on the instrument configuration. In most cases, no or minimal sample preparation is required. With handheld spectrometers, the. The new SPECTRO xSORT handheld XRF boasts numerous new features and designs aimed at enhancing user speed, ease, and convenience, while also delivering advanced analytical performance. Also, it includes a built-in standardization via. Skyray Instruments 5th generation Explorer Handheld X-Ray Fluorescence Spectrometer is our best and most advanced Handheld XRF. Its principle involves emitting high-energy X-rays from an X-ray tube.