Sulfur speciation in heavy petroleums: Information from X-ray absorption near-edge structure

Differential utilization of isomers pyrite and marcasite by Acidianus manzaensis were comparatively studied, besides the iron and sulfur speciation transformation of the minerals was also investigated based on synchrotron radiation X-ray absorption near edge structure (XANES) spectroscopy. The results showed that the biooxidation of pyrite was faster than marcasite. The bioleached surface of both pyrite and marcasite are serious corroded, and the Fe (III)-containing species as well as jarosite were gradually produced, and more elemental sulfur species were formed on the marcasite surface than that for pyrite. It demonstrates the mineral structure does affect the biooxidation of pyrite and marcasite, and the more precipitated elemental sulfur might be one of the reasons leading to lower oxidation rate of marcasite by A. manzaensis.

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Sulfur speciation in fluid coke and its activation products using K-edge X-ray absorption near edge structure spectroscopy

Journal of Sulfur Chemistry ◽

10.1080/17415990903046774 ◽

2009 ◽

Vol 30 (6) ◽

pp. 555-569 ◽

Cited By ~ 15

Author(s):

Jenny H. Cai ◽

Eric Morris ◽

Charles Q. Jia

Keyword(s):

Edge Structure ◽

X Ray ◽

Activation Products ◽

Sulfur Speciation ◽

Fluid Coke ◽

X Ray Absorption

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Chemical Properties of Superfine Pulverized Coal Particles. Part 4. Sulfur Speciation by X-ray Absorption Near-Edge Structure Spectroscopy

Energy & Fuels ◽

10.1021/acs.energyfuels.0c02432 ◽

2020 ◽

Vol 34 (11) ◽

pp. 13686-13697

Author(s):

Jiaxun Liu ◽

Xiuchao Yang ◽

Yuanzhen Jiang ◽

Hai Zhang ◽

Xue Jiang ◽

...

Keyword(s):

Chemical Properties ◽

Pulverized Coal ◽

Edge Structure ◽

X Ray ◽

Coal Particles ◽

Sulfur Speciation ◽

X Ray Absorption

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X-ray absorption near-edge structure (XANES) spectroscopy identifies differential sulfur speciation in corneal tissue

Analytical and Bioanalytical Chemistry ◽

10.1007/s00216-013-7120-x ◽

2013 ◽

Vol 405 (21) ◽

pp. 6613-6620 ◽

Cited By ~ 10

Author(s):

Giulia Veronesi ◽

Elena Koudouna ◽

Marine Cotte ◽

Francis L. Martin ◽

Andrew J. Quantock

Keyword(s):

Xanes Spectroscopy ◽

Corneal Tissue ◽

Edge Structure ◽

X Ray ◽

Sulfur Speciation ◽

X Ray Absorption

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Sulfur speciation in two typical soil samples using X-ray absorption near-edge structure spectroscopy and chemical fractionation

Spectroscopy Letters ◽

10.1080/00387010.2016.1262426 ◽

2017 ◽

Vol 50 (1) ◽

pp. 13-16

Author(s):

Chengyun Wang ◽

Kangning Yan ◽

Huirong Lin ◽

Jiyan Shi

Keyword(s):

Soil Samples ◽

Chemical Fractionation ◽

Edge Structure ◽

X Ray ◽

Sulfur Speciation ◽

X Ray Absorption ◽

Typical Soil

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Characterization of Sulfur Speciation in Low Molecular Weight Subunits of Glutenin after Reoxidation with Potassium Iodate and Potassium Bromate at Different pH Values Using X-ray Absorption Near-Edge Structure (XANES) Spectroscopy

Journal of Agricultural and Food Chemistry ◽

10.1021/jf034457e ◽

2003 ◽

Vol 51 (25) ◽

pp. 7431-7438 ◽

Cited By ~ 16

Author(s):

Alexander Prange ◽

Barbara Birzele ◽

Johannes Krämer ◽

Hartwig Modrow ◽

Reinhold Chauvistré ◽

...

Keyword(s):

Molecular Weight ◽

Xanes Spectroscopy ◽

Low Molecular Weight ◽

Potassium Iodate ◽

Edge Structure ◽

X Ray ◽

Ph Values ◽

Sulfur Speciation ◽

X Ray Absorption

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Chemical and orientational imaging of polymeric samples

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100168074 ◽

1994 ◽

Vol 52 ◽

pp. 68-69

Author(s):

H. Ade ◽

B. Hsiao ◽

G. Mitchell ◽

E. Rightor ◽

A. P. Smith ◽

...

Keyword(s):

Ethylene Terephthalate ◽

National Laboratory ◽

Brookhaven National Laboratory ◽

Carbonyl Groups ◽

Aromatic Rings ◽

Edge Structure ◽

X Ray ◽

Scanning Transmission ◽

Polymeric Samples ◽

X Ray Absorption

We have used the Scanning Transmission X-ray Microscope at beamline X1A (X1-STXM) at Brookhaven National Laboratory (BNL) to acquire high resolution, chemical and orientation sensitive images of polymeric samples as well as point spectra from 0.1 μm areas. This sensitivity is achieved by exploiting the X-ray Absorption Near Edge Structure (XANES) of the carbon K edge. One of the most illustrative example of the chemical sensitivity achievable is provided by images of a polycarbonate/pol(ethylene terephthalate) (70/30 PC/PET) blend. Contrast reversal at high overall contrast is observed between images acquired at 285.36 and 285.69 eV (Fig. 1). Contrast in these images is achieved by exploring subtle differences between resonances associated with the π bonds (sp hybridization) of the aromatic groups of each polymer. PET has a split peak associated with these aromatic groups, due to the proximity of its carbonyl groups to its aromatic rings, whereas PC has only a single peak.

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