Sulfur Kβ X-ray emission spectroscopy: comparison with sulfur K-edge X-ray absorption spectroscopy for speciation of organosulfur compounds | Zendy

Muhammad Qureshi | Zendy; S. Nowak | Zendy; Linda Vogt | Zendy; Julien J. H. Cotelesage | Zendy; Natalia V. Dolgova | Zendy; Samin SharifiAsl | Zendy; Thomas Kröll | Zendy; Dennis Nordlund | Zendy; Roberto AlonsoMori | Zendy; TsuChien Weng | Zendy; Ingrid J. Pickering | Zendy; Graham N. George | Zendy; Dimosthenis Sokaras | Zendy

Open Access

Sulfur Kβ X-ray emission spectroscopy: comparison with sulfur K-edge X-ray absorption spectroscopy for speciation of organosulfur compounds

Author(s) -

Muhammad Qureshi,

S. Nowak,

Linda Vogt,

Julien J. H. Cotelesage,

Natalia V. Dolgova,

Samin SharifiAsl,

Thomas Kröll,

Dennis Nordlund,

Roberto AlonsoMori,

TsuChien Weng,

Ingrid J. Pickering,

Graham N. George,

Dimosthenis Sokaras

Publication year - 2020

Publication title -

physical chemistry chemical physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.053

H-Index - 239

eISSN - 1463-9084

pISSN - 1463-9076

DOI - 10.1039/d0cp05323f

Subject(s) - organosulfur compounds , sulfur , x ray absorption spectroscopy , spectroscopy , chemistry , absorption spectroscopy , k edge , x ray spectroscopy , xanes , absorption (acoustics) , x ray , genetic algorithm , emission spectrum , analytical chemistry (journal) , ultraviolet visible spectroscopy , materials science , organic chemistry , spectral line , physics , optics , quantum mechanics , evolutionary biology , composite material , biology , astronomy

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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