Sulfur Kβ X-ray emission spectroscopy: comparison with sulfur K-edge X-ray absorption spectroscopy for speciation of organosulfur compounds
In: Physical Chemistry Chemical Physics, Jg. 23 (2021), S. 4500-4508
Online
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Zugriff:
Until recently, sulfur was known as a "spectroscopically silent" element because of a paucity of convenient spectroscopic probes suitable for in situ chemical speciation. In recent years the technique of sulfur K-edge X-ray absorption spectroscopy (XAS) has been used extensively in sulfur speciation in a variety of different fields. With an initial focus on reduced forms of organic sulfur, we have explored a complementary X-ray based spectroscopy - sulfur Kβ X-ray emission spectroscopy (XES) - as a potential analytical tool for sulfur speciation in complex samples. We compare and contrast the sensitivity of sulfur Kβ XES with that of sulfur K-edge XAS, and find differing sensitivities for the two techniques. In some cases an approach involving both sulfur K-edge XAS and sulfur Kβ XES may be a powerful combination for deducing sulfur speciation in samples containing complex mixtures.
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Sulfur Kβ X-ray emission spectroscopy: comparison with sulfur K-edge X-ray absorption spectroscopy for speciation of organosulfur compounds
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Autor/in / Beteiligte Person: | Vogt, Linda I. ; Cotelesage, Julien J. H. ; Sokaras, Dimosthenis ; Nowak, S. ; Qureshi, Muhammad ; Pickering, Ingrid J. ; Nordlund, Dennis ; Weng, Tsu-Chien ; Dolgova, Natalia V. ; Kroll, Thomas ; Alonso-Mori, Roberto ; Sharifi, Samin ; George, Graham N. |
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Zeitschrift: | Physical Chemistry Chemical Physics, Jg. 23 (2021), S. 4500-4508 |
Veröffentlichung: | Royal Society of Chemistry (RSC), 2021 |
Medientyp: | unknown |
ISSN: | 1463-9084 (print) ; 1463-9076 (print) |
DOI: | 10.1039/d0cp05323f |
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