Naslov
A General Way of Solving Matrix Effect Problems in Elemental Analysis by EDXRFS

Autori
Orlić, Ivica ; Makjanić, Jagoda ; Raos, D. ; Valković, Vladivoj

Izvornik
X-Ray Spectrometry (0049-8246) 17 (1988), 4; 139-143

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
EDXRF; quantitative analysis; computer program COREX

Sažetak
Instead of using the complete set of fundamental parameters for solving matrix effects in quantitative energydispersive x-ray fluorescence (EDXRF) analysis, some of them, such as excitation and detection efficiency and the dependence of Compton and Rayleigh scattered intensities on sample composition, were determined from a set of standards such as chemical compounds and pure elements. In this way all fundamental parameters except mass absorption coefficients were removed from the calculation procedure, which results in a much simpler formalism. The computer program COREX based on this principle and described in this paper is relatively simple and can run even on small microcomputers, while the overall error can be kept in the range of a few percent if the calibration procedure and sample preparation were performed carefully.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA