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Patterns of inter‐elemental effects in EDXRF and a new correction method
Author(s) -
Ivanenko V. V.,
Kustov V. N.,
Metelev A. Yu.
Publication year - 2003
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.613
Subject(s) - energy (signal processing) , resolution (logic) , x ray fluorescence , analytical chemistry (journal) , elemental analysis , cobalt , computational physics , computer science , biological system , fluorescence , algorithm , chemistry , materials science , physics , mathematics , statistics , optics , environmental chemistry , metallurgy , inorganic chemistry , artificial intelligence , biology
A new method is suggested for improving the accuracy of energy‐dispersive x‐ray fluorescence analysis (EDXRF) and its implementation is described. This method is a result of studying changes in coefficients of the inter‐elemental effect, A = f ( Z ). We created a data bank for elements from K to Br, which accounts for the effect of three lighter and five heavier neighboring elements upon the sought element. This study offers a physical explanation of sharp bends in coefficient curves. We suggest principles for optimizing the analytical region parameters so as to reduce the effect of neighboring elements. Finally, we describe the principles of building a data bank A = f ( Z , R ) to account for the effect of energy resolution ( R ) change. Application of the suggested method to the exploration of oceanic nodules reduced the cobalt detection threshold by 50–75% ( C lim−0.95 = 0.032%) and decreased the standard deviation of spectrum analysis, thus enhancing confidence in EDXRF as an effective tool for research on complex objects. The approach suggested in this study can be used with newer energy‐dispersive analyzers, including TXRF models. Copyright © 2003 John Wiley & Sons, Ltd.