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The speaker discussed recent advances in the development of parameter-free ab initio theory for calculating x-ray absorption spectra, which is a necessary prerequisite for the use of XANES as a fully quantitative technique.
Using XANES spectroscopy to determine the oxidation state of chromium in contaminated soil.
Determination of the nitrogen chemical structures in petroleum asphaltenes using XANES spectroscopy.
Caption: FIGURE 2: Raman spectroscopy of (a) FLG and MWCNTs and C K-edge XANES spectroscopy of (b) FLG and MWCNTs along with graphite as a reference.
With the improved efficiency of FeffMPI now in hand, it is feasible to carry out XANES calculations which otherwise would have been impractical.
The results of FEFF calculations are compared to the experimental XANES in Figure 7a and 7b for s-polarized ([E.
This understanding could be developed through the suite of analytical tools presented in this paper, with knowledge obtained through strategies such as: (i) the application of labelled isotopes to track nutrient transformations; (ii) spectroscopic synchrotron techniques such as XANES to identify specific inorganic P compounds and how they change according to shifts in soil pH; and (Hi) connecting the relative abundance and activity of the microbial functional genes that drive nutrient transformations with the chemical forms of the various nutrients, under a regime of increasing pH.
A study of sulfur functionalities in fossil fuels using destructive (ASTM and Py-GC-MS) and non-destructive (SEM-EDX, XANES and XPS) techniques // Fuel.
NSLS National Synchrotron Light Source at Brookhaven National Labs, Upton, NY OCMR Ontario Centre for Materials Reseach PAS Photoabsorption Spectroscopy PES Photoelectron Spectroscopy PSD Photon Stimulated Desorption PSL Physical Sciences Laboratory, adjacent to the SRC, University of Wisconsin-Madison SRC Synchrotron Radiation Centre, which houses the Aladdin synchrotron SAXS Small Angle X-ray Scattering UHV Ultra-high Vacuum XANES X-ray-Absorption Near Edge Structure.
Niazi NK, Singh B, Shah P (2011) Arsenic speciation and phytoavailability in contaminated soils using a sequential extraction procedure and XANES spectroscopy.
To implement parallel processing of XANES we started from the serial version of the computer code Feff [54].
Schefe CR, Kappen P, Zuin L, Pigram P J, Christensen C (2009) Carboxylic acid addition modifies phosphate sorption on soil and boehmite surfaces: A solution chemistry and XANES spectroscopy study.