Patent Document ID: 20180106736
Application ID: 15544896
Patent Flag: 0

Claim One:
1. A scanning-type X-ray fluorescence spectrometer which irradiates a sample with primary X-rays and measures intensities of generated secondary X-rays, the spectrometer comprising: a plurality of standard samples to create calibration curves corresponding to analytical samples; and a quantitative analysis condition setting unit configured to be preset, as quantitative analysis conditions, with analytical elements of the analytical samples, and sample constituting elements and their contents of each standard sample, wherein the quantitative analysis condition setting unit performs a qualitative analysis and a semi-quantitative analysis, which is a quantitative analysis based on the qualitative analysis result, of each standard sample, and detects, as a new detected element, an element other than the preset sample constituting elements, calculates theoretical matrix correction factors, which are relevant to absorption-enhancement of fluorescent X-rays, for the new detected element and the preset sample constituting elements, by a fundamental parameter procedure, and calculates, as an absorption-enhancement effect degree, an effect degree of absorption-enhancement of the fluorescent X-rays by the new detected element on an analytical value of the analytical element, on the basis of the theoretical matrix correction factors, a semi-quantitative analytical value of the new detected element, and the preset contents of the sample constituting elements, and compares the absorption-enhancement effect degree with a corresponding predetermined reference value, calls, from a prestored overlapping correction table, an overlapping correction factor for an interfering line of the new detected element with an analytical line of the analytical element, and calculates, as an overlapping effect degree, an effect degree of overlapping by the interfering line of the new detected element on the analytical line of the analytical element, on the basis of the overlapping correction factor, the semi-quantitative analytical value of the new detected element, and the preset contents of the sample constituting elements, and compares the overlapping effect degree with a corresponding predetermined reference value, and adds, when at least either the absorption-enhancement effect degree or the overlapping effect degree is greater than each corresponding predetermined reference value, the new detected element as an analytical element of the analytical samples to the quantitative analysis conditions.