Identification of X-Ray Diffraction Patterns of Multicomponent Mixtures
A single phase diffraction pattern can usually be readily identified by searching a data base of reference powder patterns, provided of course that the substance in question is present in the data base used. The real problems of phase analysis occur when the measured pattern results from a mixture of substances. Usually, no more than five constituents in a mixture may reliably be resolved 1,2 in case that there is no additional information available by means of which the number of substances that have to be taken into consideration can sufficiently be reduced. Physical reasons of this limitation are quantitatively examined and the ways how to overcome it are elucidated in the present paper.
KeywordsQuantitative Phase Analysis Froth Flotation Maximum Likelihood Factor Analysis Mixture Pattern Unknown Constituent
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