caa a22 4500 386400946 CHVBK 20180307112158.0 cr unu---uuuuu 161130e198909 xx s 000 0 eng 10.1017/S0885715600016614 doi S0885715600016614 pii (NATIONALLICENCE)cambridge-10.1017/S0885715600016614 The Use of Fourier Self-Deconvolution to Resolve Overlapping X-Ray Powder Diffraction Peaks [Elektronische Daten] Fourier self-deconvolution has been successfully applied as a means of obtaining semi-quantitative information by resolving the overlapping peaks in X-ray powder diffractograms collected from mixtures of kaolinite and ripidolite. A series of diffractograms were collected from known mixtures of the two minerals. The diffractograms were then processed using Fourier self-deconvolution over a selected range between 23 and 27° 2θ (encompassing the overlapping peaks of kaolinite (002) and ripidolite (004) at 24.85 and 25.13° 2θ, respectively). Once deconvoluted, areas under individual peaks of kaolinite and ripidolite were calculated using curve fitting. The calculated percentage of kaolinite in the mixtures was then plotted versus the true weight percent of kaolinite. The same procedure was conducted on the original diffractograms using only curve fitting without first deconvoluting. A comparison of results shows that, provided the number of peaks are known, both methods give nearly equal results. However, Fourier self-deconvolution, by increasing the resolution, greatly improves the ability to detect overlapping peaks. Copyright © Cambridge University Press 1989 Armstrong Ernest E. BP America Research and Development, 4440 Warrensville Center Road, Cleveland, Ohio 44128, U.S.A. Cameron David G. BP America Research and Development, 4440 Warrensville Center Road, Cleveland, Ohio 44128, U.S.A. Powder Diffraction Cambridge University Press 4/3(1989-09), 144-151 0885-7156 4:3<144 1989 4 PDJ https://doi.org/10.1017/S0885715600016614 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0885715600016614 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Armstrong Ernest E. BP America Research and Development, 4440 Warrensville Center Road, Cleveland, Ohio 44128, U.S.A NATIONALLICENCE 700 1- Cameron David G. BP America Research and Development, 4440 Warrensville Center Road, Cleveland, Ohio 44128, U.S.A NATIONALLICENCE 773 0- Powder Diffraction Cambridge University Press 4/3(1989-09), 144-151 0885-7156 4:3<144 1989 4 PDJ CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge