Automated matrix-correction of line ratios in energy-dispersive x-ray fluorescence spectrum deconvolution
Faculty of Sciences. Chemistry
X-ray spectrometry. - London
, p. 111-114
University of Antwerp
Most computer XRF-spectrum deconvolution routines make use of fixed intensity ratios for the lines from one element. The magnitude of the error that fixed ratios imply has been quantitatively evaluated for samples with a varible thickness or matrix. A procedure for routinely adapting the line ratios according to the matrix effect in every sample (by making use of the matrix information present in the scatter peaks) enhances the accuracy of the spectrum evaluation.