The fusion method in X-ray fluorescence (XRF) analysis is an effective sample preparation technique for getting accurate analysis results of powder samples, since the technique eliminates heterogeneity due to grain size and mineralogical effect. In addition, the homogenization of material property by vitrification makes it possible to expand the calibration range, such as making synthetic calibration curves by the use of reagents or applying the calibration to diverse materials.
A benchtop wavelength-dispersive X-ray fluorescence (WDXRF) spectrometer Supermini is compact and yet has excellent resolution and sensitivity for light elements. This report demonstrates that single calibration for diverse minerals and ores was established by the fusion method on the Supermini.