Range-by-Range Calculations of Absorption Coefficients as a Method for Increasing the Accuracy of Electron Probe Microanalysis

To increase the accuracy of electron probe microanalysis, it was proposed to calculate absorption coefficients range-by-range, with selecting an optimum calculation method for each absorption range. The approach was implemented in the analysis of rock-forming minerals using the PAP correction method...

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Veröffentlicht in:Journal of analytical chemistry (New York, N.Y.) N.Y.), 2020-07, Vol.75 (7), p.902-908
Hauptverfasser: Lavrent’ev, Yu. G., Usova, L. V., Lavrent’ev, M. Yu, Karmanov, N. S.
Format: Artikel
Sprache:eng
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Zusammenfassung:To increase the accuracy of electron probe microanalysis, it was proposed to calculate absorption coefficients range-by-range, with selecting an optimum calculation method for each absorption range. The approach was implemented in the analysis of rock-forming minerals using the PAP correction method. Calculations of absorption coefficients in the region below the K- edge were performed using the PAP method and, in K–L 1 range, by the Heinrich method with certain refinements. A series of natural minerals with high iron (and zinc) contents were used for refinement. Practical tests confirmed the expediency and reliability of the range-by-range calculation of absorption coefficients.
ISSN:1061-9348
1608-3199
DOI:10.1134/S106193482005010X