CORRECTION OF FLUORESCENT X-RAY INTENCITY IN FLUORESCENT X-RAY ANALYSIS METHOD

摘要

PURPOSE:To enable a spectral analysis to be performed highly accurately by compensating for a fluorescent X-ray intensity regardless of fluctuation of a dilution rate due to weighing error of a particle or a flux. CONSTITUTION:A fluorescent X-ray intensity of each element is measured for each of a plurality of types of glass beads with a different dilution rate and a correlation relationship I/I0=f(D/D0) between a ratio D/D0 of an arbitrary dilution rate D to a reference dilution rate Dg and a ratio I/I0 of a fluorescent X-ray intensity I corresponding to the dilution rate D for a reference fluorescent X-ray intensity I0 are obtained previously for each element. A particle sample and a flux are mixed and then subjected to heating fluxing and cooling hardening for forming a glass bead. An actually measured dilution rate D' is obtained based on the weighing result. By substituting a packaging fluorescent X-ray intensity I0' and the actually measured dilution rate D' which are obtained as a result of spectral analysis based on the fluorescent X-ray analysis method for the glass bead for the above correlation relationship, a corrected fluorescent X-ray intensity I' is obtained according to I'=f(D'/D0)XI0'.