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Quantitative X-Ray Emission Analysis of Magnesium Through Fluorine with X-Ray and Electron Excitation

Published online by Cambridge University Press:  06 March 2019

F. Bernstein
Affiliation:
General Electric Company Milwaukee, Wisconsin
R. A. Mattson
Affiliation:
General Electric Company Milwaukee, Wisconsin
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Abstract

The analysis of dry powder samples for magnesium, sodium, and fluorine by X-ray and electron excitation has been studied. As in the case of heavier elements, the form of chemical combination influences the elemental sensitivity; sensitivity changes due to self-absorption can be adequately predicted using published absorption coefficients. Where both absorption and enhancement effects are possible, selection of X-ray target or excitation potential can. eliminate the enhancement problem. Matrix effects were found to be extremely variable and unpredictable. Finally, X-ray and electron excitation results are compared for the three elements in a series of geological samples. Efficiency of excitation was far better for electron excitation, but limits of detectability were lower for X-ray excitation due to significantly lower backgrounds.

Type
Research Article
Copyright
Copyright © International Centre for Diffraction Data 1966

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