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Sample Preparation Optimization for EDXRF Analysis of Portland Cement

Published online by Cambridge University Press:  06 March 2019

Wayne Watson ,
Jim Parker  and
Anthony R. Harding
Wayne Watson
Affiliation:
Tracor Xray, Mountain View CA
Jim Parker
Affiliation:
Manville Technical Center, Denver CO
Anthony R. Harding
Affiliation:
Tracor Xray, Mountain View CA
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Abstract

Various sample preparation methods for Energy Dispersive X-ray Fluorescence (EDXRF) analysis of Portland cement were compared in order to evaluate improvement in analytical accuracy and precision. Sample preparation requirements for EDXRF are slightly different than for Wavelength Dispersive X-ray Fluorescence (WDXRF), and the methods commonly used in WDXRF are not optimized for EDXRF. Primarily, the work focuses on techniques for producing a fused sample with the lowest practical concentration of lithium borate flux. Determination of minimum detection limits were made from samples with varying proportions of flux in order to evaluate analytical optimization. Ease and reproducibility of preparation of the sample was also considered.

Type
V. XRF Applications
Information
Advances in X-Ray Analysis , Volume 32: Thirty-Seventh Annual Conference on Applications of X-ray Analysis, August 1-5, 1988 , 1988 , pp. 221 - 226
Copyright
Copyright © International Centre for Diffraction Data 1988

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References

1. Moore, Clyde W., Spectrochemical Analysis of Portland Cement by Fusion with lithium tetraborate using an X-ray Spectrometer, in: “Methods for Emission Spectrochemical Analysis,” ASIM Commitee E-2, PhiladelphiaGoogle Scholar
2. Bennett, H. and Oliver, G.J., Development of Fluxes for the Analysis of Ceramic Materials by X-ray Fluorescence Spectrometry,Analyst 101:803–807 (1976)Google Scholar