Interpretation and use of inter-element correlation graphs obtained by scanning X-ray fluorescence micro-beam spectrometry from individual particles.Part II - application

Inter-element correlation graphs from two-dimensional scanning X-ray fluore scence micro-beam spectrometry measurements of individual particles were mo deled in the previous theoretical part of this study. It was shown that the investigation of the correlation graph gives an opportunity to find a simp le geometrical shape to model individual particles. In the present work ind ividual oil and coal fly ash particles were studied as an application of th e method. The absorption characteristics of the residual matrices of the pa rticles could be estimated from the width of the correlation plots. Inter-e lement concentration ratios were estimated from the slopes of the respectiv e correlation graphs. These data were compared with the values determined b y measuring a thin glass calibration standard NIST 1832. (C) 2000 Elsevier Science B.V. All rights reserved.