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An Application of the Mutual Standards Concept to X-Ray Fluorescence Spectroscopy: The Analysis of Meteoritic Sulphide Nodules for Eight Elements

Published online by Cambridge University Press:  06 March 2019

Arthur A. Chodos  and
Walter Nichiporuk
Arthur A. Chodos
Affiliation:
Division of Geological Sciences, California Institute of Technology Pasadena, California
Walter Nichiporuk
Affiliation:
Division of Geological Sciences, California Institute of Technology Pasadena, California
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Abstract

The mutual standards concept has been applied to the X-ray fluorescence spectroscopic analysis of metcoritic Sulphide nodules for Fe, As, Co, Cr, Cu, Ni, V, and Zn. The technique is rapid and requires no addition of internal standards or binders.

On a sulphur free basis, concentrations range from 88-100% for Fe, up to 10% for Cr and Ni, up to 1% for Co, Cu and Zn, and up to 0.05% for As and V. Sensitivities vary from. 20 to 80 ppm on 100 mg. samples.

Analysis of a large number of chemically synthesized samples indicates accuracies comparable to chemical techniques employed in our laboratory.

Type
Research Article
Information
Advances in X-Ray Analysis , Volume 2: Seventh Annual Conference on Industrial Applications of X-ray Analysis, August 13-15, 1958 , 1958 , pp. 247 - 255
Copyright
Copyright © International Centre for Diffraction Data 1958

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References

1 Coulliette, J. H., “Spectrographic Determination of Nickel and Chromium in Stainless Steel,” Inct. Eng. Chem., Anal. Ed., Vol. 15, 1943, p. 732.Google Scholar
2 Chodos, A. A., Rose, A. W., and Godijn, E., “The Determination of Iron in Sphalerite by X-ray Fluorescence Spectrography,” presented before the Pittsburgh Conference on Analytical Chemistry and Applied Spectroscopy, Mar. 1957, Pittsburgh, Pa.Google Scholar