Fourier transform ion cyclotron resonance mass spectrometric analysis of the green fraction of soil humic acids

2013 ◽  
Vol 27 (22) ◽  
pp. 2559-2568 ◽  
Author(s):  
Kosuke Ikeya ◽  
Rachel L. Sleighter ◽  
Patrick G. Hatcher ◽  
Akira Watanabe
Keyword(s):  
Fourier Transform ◽  
Humic Acids ◽  
Cyclotron Resonance ◽  
Mass Spectrometric ◽  
Mass Spectrometric Analysis ◽  
Spectrometric Analysis ◽  
Ion Cyclotron Resonance ◽  
Ion Cyclotron ◽  
Soil Humic Acids

Molecular characterization of petroporphyrins in crude oil by electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry

2001 ◽  
Vol 79 (5-6) ◽  
pp. 546-551 ◽  
Author(s):  
Ryan P Rodgers ◽  
Christopher L Hendrickson ◽  
Mark R Emmett ◽  
Alan G Marshall ◽  
Mark Greaney ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Fourier Transform ◽  
Crude Oil ◽  
Electrospray Ionization ◽  
Cyclotron Resonance ◽  
Spectrometric Analysis ◽  
Ionization Mass ◽  
Ion Cyclotron Resonance ◽  
Ion Cyclotron ◽  
Ft Icr

Petroporphyrin compositional analysis of a heavy crude oil has been realized by isolation and subsequent ESI-FT-ICR mass spectrometric analysis of the porphyrin-containing fractions. Vanadium octaethyl (V=O(II)OEP) and nickel octaethyl (Ni(II)OEP) porphyrin standards were analyzed to determine favorable electrospray ionization conditions and provide insight as to the molecular species present (e.g., adducts, multimers). Standard V=O(II)OEP and Ni(II)OEP solutions revealed the presence of both monomer and dimer species with a greater relative abundance of monomers. In contrast, mass spectral analysis of a porphyrin fraction from Cerro Negro crude oil was dominated by dimeric species. MS3 analysis identified a dioctylphthalate (DOP) contaminant, likely introduced during fractionation of the crude oil. DOP-porphyrin complexes and porphyrin-porphyrin dimers were then identified. Infrared multiphoton dissociation (IRMPD) of dimeric species produced the corresponding monomers with minimal fragmentation. The monomeric petroporphyrins were analyzed to reveal the metal (Ni(II) or V=O(II)), porphyrin type (e.g., etio vs. DPEP), and distribution of alkylation.Key words: petroporphyrin, porphyrin, petroleum, electrospray ionization, mass spectrometry, Fourier transform, ion cyclotron resonance, ICR, FT-ICR, FTMS.

Liquid Chromatography−Fourier Transform Ion Cyclotron Resonance Mass Spectrometric Characterization of Protein Kinase C Phosphorylation

2003 ◽  
Vol 2 (4) ◽  
pp. 373-382 ◽  
Author(s):  
Michael J. Chalmers ◽  
John P. Quinn ◽  
Greg T. Blakney ◽  
Mark R. Emmett ◽  
Harold Mischak ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Protein Kinase C ◽  
Liquid Chromatography ◽  
Protein Kinase ◽  
Cyclotron Resonance ◽  
Mass Spectrometric ◽  
Ion Cyclotron Resonance ◽  
Kinase C ◽  
Ion Cyclotron

Molecular compositions of humic acids extracted from leonardite and lignite as determined by Fourier transform ion cyclotron resonance mass spectrometry

2016 ◽  
Vol 26 (5) ◽  
pp. 446-448 ◽  
Author(s):  
Alexander Ya. Zherebker ◽  
Yury I. Kostyukevich ◽  
Alexey S. Kononikhin ◽  
Eugene N. Nikolaev ◽  
Irina V. Perminova
Keyword(s):  
Mass Spectrometry ◽  
Fourier Transform ◽  
Humic Acids ◽  
Cyclotron Resonance ◽  
Ion Cyclotron Resonance ◽  
Ion Cyclotron
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