Dear François, Maybe you have a strongly disordered system. Depending on the type of disorder and the distribution of diffuse intensity, it can also have an influence on the reflection profile (thermal diffuse scattering). Michael
Dr. Michael Wörle Head Small Molecule Crystallography Center Laboratorium für Anorganische Chemie ETH Zürich HCI H103 Vladimir-Prelog-Weg 1 CH-8093 Zürich Tel.: +41 44 632 5684 FAX: +41 44 632 1149 email: woe...@inorg.chem.ethz.ch http://www.smocc.ethz.ch ----------------------------------------------------------------------- The Zurich School of Crystallography, University of Zurich, June 6-17, 2021 http://www.chem.uzh.ch/linden/zsc ----------------------------------------------------------------------- -----Ursprüngliche Nachricht----- Von: rietveld_l-requ...@ill.fr [mailto:rietveld_l-requ...@ill.fr] Im Auftrag von François Goutenoire Gesendet: Wednesday, 3 March 2021 13:34 An: rietveld_l@ill.fr Betreff: Hyper-Lorentzian effect on quantitative analysis Dear Rietveld users, I have some industrial compound presenting a strong hyper-Lorentzian peak shape (eta=1.1 with HighScore). When we calculate the amorphous content after an internal standard addition, the result is 40%. The micro-absorption effect has been minimized (mu of the internal standard is closed to the compound). But with some electronic transmission analysis no amorphous is observed. The question is : Does a strong hyper-Lorentzian peak shape could influence quantitative analysis ? François -- ********************************************************************************************* Pr. Francois GOUTENOIRE e-mail: francois.gouteno...@univ-lemans.fr Tel: 02.43.83.33.54 FAX: 02.43.83.35.06 Skype Entreprise visio conférence Département des Oxydes et Fluorures Institut des Molécules et des Matériaux du Mans IMMM - UMR CNRS 6283 Université du Maine - Avenue Olivier Messiaen F-72085 Le Mans Cedex 9 FRANCE ********************************************************************************************* Formation Rietveld CNRS 2020 https://cnrsformation.cnrs.fr/diffraction-des-rayons-x-sur-materiaux-polycristallins?axe=135 Formation EDX CNRS 2020 https://cnrsformation.cnrs.fr/fluorescence-x-edx?axe=135 Formation SAXS et Réflectivités pour couches minces et matériaux nanostructurés. https://cnrsformation.cnrs.fr/caracterisation-des-materiaux-nanostructures-par-diffusion-des-rayons-x?axe=135 Bibliographie https://scholar.google.fr/citations?hl=fr&user=qC-lmN4AAAAJ&view_op=list_works&authuser=1&sortby=title https://orcid.org/0000-0001-5339-3002
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