Open Access Peer-reviewed

How to Apply the Fundamental Parameters Method to the Quantitative X-ray Fluorescence Analysis of Geological Materials

Richard Rousseau
Les logiciels R. Rousseau Inc., Cantley, Canada
Journal of Geosciences and Geomatics. 2013, 1(1), 1-7. DOI: 10.12691/jgg-1-1-1
Published online: August 25, 2017

Abstract

The X-ray fluorescence (XRF) analysis of geological materials requires a robust analytical method because a large variety of elements to determine can be present in each sample and the concentration range of each one can be very large. In order to extract the maximum accuracy from the measured XRF intensities, a Fundamental Parameters (FP) method is proposed, but an adapted one to such an analytical context. The proposed adapted FP method consists of an appropriate sample preparation, a unique concentration calculation method and calibration procedure. It includes also a management of volatile components.

Keywords:

XRF spectrometry, XRF analysis, matrix effect correction, Sherman equation, Fundamental Parameters, Fundamental algorithm, matrix independent calibration, instrumental drift
[1]  Sherman J. The theoretical derivation of fluorescent X-ray intensities from mixtures. Spectrochimica Acta. 1955; 7: 283-306.
 
[2]  Rousseau R.M. The quest for a Fundamental Algorithm in X-ray fluorescence analysis and calibration. The Open Spectroscopy Journal. 2009; 3: 31-42.View Article
 
[3]  Willis J.P. and Duncan A.R. Understanding XRF Spectrometry, Volume 2: Quantitative analysis and special sample preparation and presentation methods. Almelo: PANalytical B.V. 2008; 13-11 to 13-16.
 
[4]  Rousseau R.M. and Boivin J.A. The Fundamental Algorithm: a natural extension of the Sherman equation, part I: theory. The Rigaku Journal. 1998; 15 (1): 13-15.
 
[5]  Rousseau R.M. Corrections for matrix effects in X-ray fluorescence analysis-A tutorial. Spectrochimica Acta Part B. 2006; 759-777.
 
[6]  Criss J.W. and Birks L.S. Calculation methods for fluorescent X-ray spectrometry, empirical coefficients vs. fundamental parameters. Analytical Chemistry. 1968; 40 (7): 1080-1087.View Article
 
[7]  Rousseau R.M. Fundamental algorithm between concentration and intensity in XRF analysis, Part 1: theory. X-Ray Spectrom. 1984; 13 (3): 115-120.View Article
 
[8]  Rousseau R.M. Fundamental Algorithm between concentration and intensity in XRF analysis, part 2: practical application. X-Ray Spectrom. 1984; 13 (3): 121-125.View Article
 
[9]  Rousseau R.M. Concept of the influence coefficient. The Rigaku Journal. 2001; 18 (1): 8-21.