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Mathematical Correction Procedures in XRF - The Long and the Short

Published online by Cambridge University Press:  06 March 2019

Gerald R. Lachance
Gerald R. Lachance*
Affiliation:
Nepean, Ontario, Canada
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Extract

The processes of absorption and enhancement in x-ray fluorescence spectrometry preclude the direct conversion of measured intensities to concentrations unless the specimens being analyzed are practically identical to the reference materials that were used as standards for calibration. While well known techniques of spectrometry such as the use of internal standards or techniques specific to x-ray fluorescence such as Compton scatter may be used in some instances, the analysis of alloys for example is not amenable to these techniques. The goal of mathematical correction procedures is to compensate adequately for matrix effects and therefore to extend the concentration range within which analysis may be accomplished. The evolution of the concepts and expressions that have been proposed for this purpose spans some 50 years, is somewhat fascinating and examined in outline after a brief nostalgic look at where it all began.

Type
X. Mathematical Methods in X-Ray Spectrometry (XRS)
Information
Advances in X-Ray Analysis , Volume 35 , Issue B: First Pacific-International Congress on X-ray Analytical Methods (PICXAM). Fortieth Annual Conference on Applications of X-ray Analysis, August 7-16, 1991 , 1991 , pp. 693 - 701
Copyright
Copyright © International Centre for Diffraction Data 1991

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