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Application toward confocal full-field microscopic X-ray absorption near edge structure spectroscopy

Pieter Tack UGent, Bart Vekemans UGent, Brecht Laforce UGent, Jennifer Rudloff-Grund, Willinton Y Hernández, Jan Garrevoet, Gerald Falkenberg, Frank Brenker, Pascal Van Der Voort UGent and Laszlo Vincze UGent (2017) ANALYTICAL CHEMISTRY. 89(3). p.2123-2130
abstract
Using X-ray absorption near edge structure (XANES) spectroscopy, information on the local chemical structure and oxidation state of an element of interest can be acquired. Conventionally, this information can be obtained in a spatially resolved manner by scanning a sample through a focused X-ray beam. Recently, full-field methods have been developed to obtain direct 2D chemical state information by imaging a large sample area. These methods are usually in transmission mode, thus restricting the use to thin and transmitting samples. Here, a fluorescence method is displayed using an energy-dispersive pnCCD detector, the SLcam, characterized by measurement times far superior to what is generally applicable. Additionally, this method operates in confocal mode, thus providing direct 3D spatially resolved chemical state information from a selected subvolume of a sample, without the need of rotating a sample. The method is applied to two samples: a gold-supported magnesia catalyst (Au/MgO) and a natural diamond containing Fe-rich inclusions. Both samples provide XANES spectra that can be overlapped with reference XANES spectra, allowing this method to be used for fingerprinting and linear combination analysis of known XANES reference compounds.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
TEMPERATURE CO OXIDATION, MAIA DETECTOR ARRAY, GOLD NANOPARTICLES, LOWER MANTLE, AEROBIC OXIDATION, TRANSITION ZONE, BENZYL ALCOHOL, FE SPECIATION, MICRO-XANES, MATO-GROSSO
journal title
ANALYTICAL CHEMISTRY
Anal. Chem.
volume
89
issue
3
pages
2123 - 2130
Web of Science type
Article
Web of Science id
000393738300098
ISSN
0003-2700
1520-6882
DOI
10.1021/acs.analchem.6b04828
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
8516103
handle
http://hdl.handle.net/1854/LU-8516103
date created
2017-03-29 09:45:43
date last changed
2017-07-06 07:47:48
@article{8516103,
  abstract     = {Using X-ray absorption near edge structure (XANES) spectroscopy, information on the local chemical structure and oxidation state of an element of interest can be acquired. Conventionally, this information can be obtained in a spatially resolved manner by scanning a sample through a focused X-ray beam. Recently, full-field methods have been developed to obtain direct 2D chemical state information by imaging a large sample area. These methods are usually in transmission mode, thus restricting the use to thin and transmitting samples. Here, a fluorescence method is displayed using an energy-dispersive pnCCD detector, the SLcam, characterized by measurement times far superior to what is generally applicable. Additionally, this method operates in confocal mode, thus providing direct 3D spatially resolved chemical state information from a selected subvolume of a sample, without the need of rotating a sample. The method is applied to two samples: a gold-supported magnesia catalyst (Au/MgO) and a natural diamond containing Fe-rich inclusions. Both samples provide XANES spectra that can be overlapped with reference XANES spectra, allowing this method to be used for fingerprinting and linear combination analysis of known XANES reference compounds.},
  author       = {Tack, Pieter and Vekemans, Bart and Laforce, Brecht and Rudloff-Grund, Jennifer and Herna\unmatched{0301}ndez, Willinton Y and Garrevoet, Jan and Falkenberg, Gerald and Brenker, Frank and Van Der Voort, Pascal and Vincze, Laszlo},
  issn         = {0003-2700},
  journal      = {ANALYTICAL CHEMISTRY},
  keyword      = {TEMPERATURE CO OXIDATION,MAIA DETECTOR ARRAY,GOLD NANOPARTICLES,LOWER MANTLE,AEROBIC OXIDATION,TRANSITION ZONE,BENZYL ALCOHOL,FE SPECIATION,MICRO-XANES,MATO-GROSSO},
  language     = {eng},
  number       = {3},
  pages        = {2123--2130},
  title        = {Application toward confocal full-field microscopic X-ray absorption near edge structure spectroscopy},
  url          = {http://dx.doi.org/10.1021/acs.analchem.6b04828},
  volume       = {89},
  year         = {2017},
}

Chicago
Tack, Pieter, Bart Vekemans, Brecht Laforce, Jennifer Rudloff-Grund, Willinton Y Hernández, Jan Garrevoet, Gerald Falkenberg, Frank Brenker, Pascal Van Der Voort, and Laszlo Vincze. 2017. “Application Toward Confocal Full-field Microscopic X-ray Absorption Near Edge Structure Spectroscopy.” Analytical Chemistry 89 (3): 2123–2130.
APA
Tack, Pieter, Vekemans, B., Laforce, B., Rudloff-Grund, J., Hernández, W. Y., Garrevoet, J., Falkenberg, G., et al. (2017). Application toward confocal full-field microscopic X-ray absorption near edge structure spectroscopy. ANALYTICAL CHEMISTRY, 89(3), 2123–2130.
Vancouver
1.
Tack P, Vekemans B, Laforce B, Rudloff-Grund J, Hernández WY, Garrevoet J, et al. Application toward confocal full-field microscopic X-ray absorption near edge structure spectroscopy. ANALYTICAL CHEMISTRY. 2017;89(3):2123–30.
MLA
Tack, Pieter, Bart Vekemans, Brecht Laforce, et al. “Application Toward Confocal Full-field Microscopic X-ray Absorption Near Edge Structure Spectroscopy.” ANALYTICAL CHEMISTRY 89.3 (2017): 2123–2130. Print.