Error of sample preparation in pressing emitters for X-ray fluorescence analysis |
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| Authors: | T. G. Kuz’mina M. A. Troneva N. N. Kononkova T. V. Romashova |
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| Affiliation: | 1.Vernadsky Institute of Geochemistry and Analytical Chemistry,Russian Academy of Sciences,Moscow,Russia |
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| Abstract: | When determining element concentrations in geological samples by X-ray fluorescence spectrometry using emitters obtained by pressing tablets from powder samples, we revealed the effect of a significant difference in line intensities of characteristic long-wavelength emission (ΔI i) from opposite sides of the emitter. The effects of compacting pressure, mass of emitter, and its surface area on ΔI i were investigated. It was shown that the account of this effect can reduce the error of sample preparation in using compacting pressures lower than 20 t. |
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