Arsenic distribution and valence state variation studied by fast hierarchical length-scale morphological, compositional, and speciation imaging at the Nanoscopium, Synchrotron Soleil

Andrea Somogyi; Kadda Medjoubi; Maria Sancho-Tomas; P. T. Visscher; Gil Baranton; Pascal Philippot

doi:10.1117/12.2276962

7 September 2017 Arsenic distribution and valence state variation studied by fast hierarchical length-scale morphological, compositional, and speciation imaging at the Nanoscopium, Synchrotron Soleil

Andrea Somogyi, Kadda Medjoubi, Maria Sancho-Tomas, P. T. Visscher, Gil Baranton, Pascal Philippot

Author Affiliations +

Proceedings Volume 10389, X-Ray Nanoimaging: Instruments and Methods III; 1038914 (2017) https://doi.org/10.1117/12.2276962
Event: SPIE Optical Engineering + Applications, 2017, San Diego, California, United States

Abstract

The understanding of real complex geological, environmental and geo-biological processes depends increasingly on in-depth non-invasive study of chemical composition and morphology. In this paper we used scanning hard X-ray nanoprobe techniques in order to study the elemental composition, morphology and As speciation in complex highly heterogeneous geological samples. Multivariate statistical analytical techniques, such as principal component analysis and clustering were used for data interpretation. These measurements revealed the quantitative and valance state inhomogeneity of As and its relation to the total compositional and morphological variation of the sample at sub-μm scales.

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Andrea Somogyi, Kadda Medjoubi, Maria Sancho-Tomas, P. T. Visscher, Gil Baranton, and Pascal Philippot "Arsenic distribution and valence state variation studied by fast hierarchical length-scale morphological, compositional, and speciation imaging at the Nanoscopium, Synchrotron Soleil", Proc. SPIE 10389, X-Ray Nanoimaging: Instruments and Methods III, 1038914 (7 September 2017); https://doi.org/10.1117/12.2276962

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