Sulfate Speciation Analysis Using Soft X-Ray Emission Spectroscopy

Authors

Lothar Weinhardt, Karlsruhe Institute of Technology, Campus North
Dirk Hauschild, Karlsruhe Institute of Technology, Campus North
Ralph Steininger, Karlsruhe Institute of Technology, Campus North
Nan Jiang, University of Nevada, Las VegasFollow
Monika Blum, University of Nevada, Las Vegas
Wanli Yang, Advanced Light Source, Berkeley
Clemens Heske, University of Nevada, Las VegasFollow

Document Type

Article

Publication Date

6-2-2021

Publication Title

Analytical Chemistry

First page number:

1

Last page number:

9

Abstract

The chemical and electronic structures of 15 different sulfates are studied using S L2,3 soft X-ray emission spectroscopy (XES). Sulfur L2,3 XES spectra of sulfates are distinctively different from those of other sulfur compounds, which makes XES a powerful technique for sulfate detection. Furthermore, subtle but distinct differences between the spectra of sulfates with different cations are observed, which allow a further differentiation of the specific compound. Most prominently, the position and width of the emission from "S 3s"derived bands systematically vary for different compounds, which can be understood with electronic structure and spectral calculations based on density functional theory.

Disciplines

Analytical Chemistry

Language

English

Repository Citation

Weinhardt, L., Hauschild, D., Steininger, R., Jiang, N., Blum, M., Yang, W., Heske, C. (2021). Sulfate Speciation Analysis Using Soft X-Ray Emission Spectroscopy. Analytical Chemistry 1-9.
http://dx.doi.org/10.1021/acs.analchem.1c01187