PPT Slide
2. Quantitative Analysis with Qualitative Control of Calibration Standards
T. Knudsen, X-Ray Spectrometry, 10 (2), 54-6, 1981
“Samples containing identical or very similar phases and differing in their contents of these can be used for calibration of a quantitative X-ray diffraction analysis without knowing their actual mineralogical composition. The method requires that at least one major peak for each phase is well isolated and that the number of calibration samples is equal to, or exceeds, the number of phases”