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A Simple Multielement-Calibration System for Analysis of Minor and Major Elements in Minerals by Fluorescent X-Ray Spectrography

Published online by Cambridge University Press:  06 March 2019

Merlyn L. Salmon
Merlyn L. Salmon*
Affiliation:
FLUO-X-SPEC Laboratory, Denver, Colorado
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Abstract

Techniques of mineral analysis by fluorescent X-ray spectrography can generally be classified on the basis of (1) extensive sample preparation and simple instrumental examination, (2) simple sample preparation and extensive instrumental examination, (3) extensive processes for both, or (4) simple processes for both major phases of the technique. The latter type of technique is usually the most commensurate with the concept “maximum information with minimum effort.”

Suitable analytical results with multielement calibration systems for random mineral samples can be obtained if there are valid considerations of the relevant absorption and enhancement effects or if the systems are based on general procedures to minimize absorption and enhancement effects. Preliminary investigation indicated that control of sample mass and use of thin films of the mineral sample is a convenient and simple method of minimizing absorption and enhancement effects.

Successful application of thin-film samples with known masses in a multielement calibration system is highly dependent upon details of sample preparation and comprehensive studies of these details will be discussed.

The calibration system is suitable for the determination of minor and major concentrations in the sample, but it is not recommended for determination of trace concentrations.

Type
Research Article
Information
Advances in X-Ray Analysis , Volume 5: Tenth Annual Conference on Applications of X-ray Analysis, August 7-9, 1961 , 1961 , pp. 389 - 404
Copyright
Copyright © International Centre for Diffraction Data 1961

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References

1. Liebhafsky, H. A., Pfetffer, H. B., Winslow, E. H., and Zeinany, P. D., X-Ray Absorption and Emission In Analytical Chemistry, John Wiley and Sons, New York, 1960.Google Scholar
2. Salmon, M. L., “The Use of Weighed, Thin-Section Samples in a Study of Chemical State and Matrix Effects in Fluorescent X-Ray Spectrography, “ 11th Annual Symposium on Spectroscopy, Chicago, 111. June, 1960.Google Scholar
3. Salmon, M. L., “Recent Developments in Fluorescent X-Ray Spectrographic-Absorptiometric Analyses of Mineral Systems,” Advances in X-Ray Analysis, Vol. 2, University of Denver, Plenum Press, New York, 1960, p. 303.Google Scholar
4. Salmon, M. L., “The Effect of Operating Variables in the Application of Multielement Calibration Systems for Fluorescent X-Ray Spectrographic Analyses of Mineral Samples,” Advances in X-Ray Analyses, Vol. 4, University of Denver, Plenum Press, New York, 1961, p. 433.Google Scholar
5. Salmon, M. L., “A Highly Simplified Multielement Calibration System for Semi-Quantitative X-Ray Spactrographic Analysis,” Advances in X-Ray Analysis, Vol, 3, University of Denver, Plenum Press, New York, 1960, p. 139.Google Scholar