XANES


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The author is deeply thankful to Bundesanstalt fur Materialforschung und -prufung (BAM) staff at Berliner Elektronenspeicherring-Gesellschaft fur Synchrotronstrahlung (BESSY II-Berlin) for doing the synchrotron XANES analysis.
In addition to elemental mapping, we recorded K-edge XANES spectra to detect the oxidation states of the investigated metal mordants within the wool specimens.
Helena site, the immediate chemical reaction of applied sulfur on the soil surface was evaluated using 1) XANES spectroscopy results, which allowed determination of all chemical forms of sulfur present in soils, and 2) direct measurements of soil pH, S042 and total sulfur.
Looking at the C K-edge XANES spectra in Figure 2(c), the samples both exhibit two distinct peaks at ~287.9 (A) and ~294 eV (B).
Gardea-Torresdey, "Environmental and biological applications of extended X-ray absorption fine structure (EXAFS) and X-ray absorption near edge structure (XANES) spectroscopies," Applied Spectroscopy Reviews, vol.
In situ mapping of growth lines in the calcitic prismatic layers of mollusc shells using X-ray absorption near-edge structure (XANES) spectroscopy at the sulphur K-edge.
However, for such metal cations as [Cu.sup.2+] or [Ni.sup.2+] it was proven using X-ray absorption fme structure (EXAFS) spectroscopy and X-ray absorption near edge spectroscopy (XANES) that inner-sphere and outer-sphere complexes are formed and adsorption takes place on the edges of vermiculite (Fumare et al., 2005; Yang et al., 2011).
Existen dos modalidades de esta tecnica: XANES, que es una tecnica sensible al estado de oxidacion, simetria puntual, configuracion electronica y el ambiente de coordinacion de la especie absorbente; y EXAFS, que es mas sensitiva a las distancias interatomicas, numero de coordinacion, desorden termico y estructura, asi como a las especies vecinas del absorbente (Jentys et al., 2000; Lopez et al., 2005).
Environmental impacts of steel slag reused in road construction: A crystallographic and molecular (XANES) approach, Journal of Hazardous Materials 139(3): 537-542.
Asi pues, la espectroscopia de absorcion de rayos X (XANES o EXAFS) nos proporciona informacion sobre el entorno local del atomo absorvente, sin ser necesario un orden atomico a largo alcance.
Previous experiments with similar sources of Mn and Zn fertilisers showed that bulk XANES (X-ray absorption near edge structure) analyses performed using dried soil and [micro]-XANES analyses performed using moist soil gave basically consistent Mn speciation (Hettiarachchi et al.
(69.) Schmucki, P, Virtanen, S, Isaacs, HS, Ryan, MP, Davenport, AJ, Bohni, H, Stenberg, T, "Electrochemical Behavior of [Cr.sub.2][O.sub.3]/[Fe.sub.2][O.sub.3] Artificial Passive Films Studied by In Situ XANES." J.