Optimization of analytical conditions for major element analysis of geological samples with XRF using glass beads

Abstract

The major element XRF analytical program, Bead03, has been prepared for geological samples. The analytical condition suitable for the samples was optimized considering sensitivity, precision, and the lower limit of detection. The detailed analytical protocol of Bead03 has been described, and Bead03 has been successfully used at the shared facility of the GSJ laboratory. Bead03 is generally used without the need for frequent calibration. As such, any user can perform analysis with a minimum number of steps and simple operation. Bead03 can also 1) perform overlapping correction of Br Lα on Al Kα, eliminating the effect of releasing agent LiBr, and 2) apply curve fitting of backgrounds for Na Kα and Mg Kα. The present report also describes the quality of calibration lines for silicate rock samples and analytical precision.