SOFTWARE FOR FUNDAMENTAL PARAMETER METHOD IN ENERGY-DISPERSIVE X-RAY-FLUORESCENCE ANALYSIS OF INTERMEDIATE THICKNESS SAMPLES

A PC-based program called ETM has been written for routine Energy Disp ersive x-Ray Fluorescence (EDXRF) analysis using the fundamental param eter method. The program can be applied for different sources of prima ry radiation. Samples to be analyzed may contain unknown matrix. Simpl e, non-iterative algorithm is used for correction of the absorption an d enhancement effects. A special procedure is applied for calculating the corrected concentrations of Pb and As when both elements are prese nt in a sample. The results of analysis of three standard reference ma terials for three sources of primary radiation are presented. The prog ram has been coded in Turbo Pascal 6.0.