Particle size effect on X-ray fluorescence intensity in some binary mixtures

It has been observed that the size of the particles in samples used in the analysis of minerals affect the inte-nsity of X-ray fluoresence. In this investigation, the heterogeneity effect due to variation in particle size was examined for binary mixtures of silica and calcium carbo-nate, in sizes ranging from 20 to 250 microns. It was observed as usual that the increase in particle size of a constituent in a mixture of fixed composition results in the decrease in the X-ray fluorescence intensity of the element under investigation. A correlative polynomial was, therefore, derived between the particle size and X-ray fluroescence intensity of the constituent in the mixture of binary oxides which has been observed to simplify the process of analysis.