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Proceedings Paper

Arsenic distribution and valence state variation studied by fast hierarchical length-scale morphological, compositional, and speciation imaging at the Nanoscopium, Synchrotron Soleil
Author(s): Andrea Somogyi; Kadda Medjoubi; Maria Sancho-Tomas; P. T. Visscher; Gil Baranton; Pascal Philippot
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Paper 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.

Paper Details

Date Published: 7 September 2017
PDF: 8 pages
Proc. SPIE 10389, X-Ray Nanoimaging: Instruments and Methods III, 1038914 (7 September 2017); doi: 10.1117/12.2276962
Show Author Affiliations
Andrea Somogyi, Synchrotron SOLEIL (France)
Kadda Medjoubi, Synchrotron SOLEIL (France)
Maria Sancho-Tomas, Synchrotron SOLEIL (France)
Institut de Physique du Globe de Paris (France)
P. T. Visscher, Univ. of Connecticut (United States)
Gil Baranton, Synchrotron SOLEIL (France)
Pascal Philippot, Institut de Physique du Globe de Paris (France)


Published in SPIE Proceedings Vol. 10389:
X-Ray Nanoimaging: Instruments and Methods III
Barry Lai; Andrea Somogyi, Editor(s)

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