The method of internal standard in quantitative phase analysis of fly ashes and their composites


Authors: Vávra V

Published in: Bulletin of Geosciences, volume 76, issue 2; pages: 107 - 111;

Keywords: X-ray diffraction, Internal standard method, Fly ash,

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XRD internal standard method was applied to quantitative phase analysis of fly ash composites. Various calibration mixtures with fluorite as internal standard combined with corundum, glass, ZnO and quartz as diluents were tested and yielded statistically significant results. The method used was tested for accuracy on twelve artificial control mixtures, the compositions of which were close to real fly ash composites. The absolute error in all cases was less than 10 %.