The Supermini 200 is a benchtop sequential wavelength dispersive X-ray fluorescence (WDXRF) spectrometer with high resolution and lower limits of detection for elemental analysis of Fluorine (F) through Uranium (U). The 200 W, air-cooled Pd target operates at 50 kV, and 4 mA produces the excitation spectrum capable of detecting light elements faster. It uses a 3-crystal changer analyzing unit that supports the standard LiF (200) as well as PET and RX25 crystals that work efficiently within the elemental range of U - F.
Two detectors are used – a gas flow proportional counter (F-PC) suited for light elements and a Scintillation counter (SC) suited for heavy elements. F-PC uses P-10 (UHP grade 90 % Argon and 10 % Methane) gas flow for operation. Samples are placed in a 12-position sample turret and are automatically loaded into the optical chamber with software control. The maximum dimensions of the sample are 44 mm in diameter and 33 mm in height. The samples can be in the form of powders, bulk solids, or liquids. The spectrometer chamber environment is usually vacuum when analyzing bulk samples. However, the environment can be set to helium for liquid samples. The sample also can be spun during the measurement. Characteristic emission lines detect the elements present, and the intensity analysis using the Fundamental Parameter method determines the chemical composition.