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X‐ray fluorescence analysis applying theoretical matrix corrections. Stainless steel
Author(s) -
De Jongh Willy K.
Publication year - 1973
Publication title -
x‐ray spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.447
H-Index - 45
eISSN - 1097-4539
pISSN - 0049-8246
DOI - 10.1002/xrs.1300020404
Subject(s) - calibration , homogeneous , matrix (chemical analysis) , x ray fluorescence , simple (philosophy) , range (aeronautics) , fluorescence , regression analysis , materials science , computational physics , analytical chemistry (journal) , biological system , mathematics , physics , chemistry , statistical physics , statistics , optics , composite material , chromatography , philosophy , epistemology , biology
The conversion of X‐ray fluorescence intensities to concentrations by a mini‐computer requires simple equations for routine use. The influence coefficients, accounting for inter‐element effects in homogeneous samples, are calculated from fundamental parameters by means of a programme called ALPHAS operating on a large computer. These coefficients can subsequently be used in the simple routine equations for wide range calibration. The theoretical coefficients are a valuable support for wide range calibrations using multiple regression analysis. The number of required standards is significantly reduced. The exclusive use of theoretical influence coefficients is demonstrated for stainless steel.