Characterization and Comparison of Nitrogen Compounds in Hydrotreated and Untreated Shale Oil by Electrospray Ionization (ESI) Fourier Transform Ion Cyclotron Resonance Mass Spectrometry (FT-ICR MS)

2012 ◽  
Vol 26 (3) ◽  
pp. 1707-1714 ◽  
Author(s):  
Xiaobo Chen ◽  
Benxian Shen ◽  
Jinpeng Sun ◽  
Chengxiu Wang ◽  
Honghong Shan ◽  
...  

The Analyst ◽  
2020 ◽  
Vol 145 (9) ◽  
pp. 3414-3423
Author(s):  
Claudia X. Ramírez ◽  
Diana Catalina Palacio Lozano ◽  
Hugh E. Jones ◽  
Rafael Cabanzo Hernández ◽  
Mark P. Barrow ◽  
...  

Six essential oils were analyzed by Fourier transform ion cyclotron resonance mass spectrometry coupled to negative electrospray ionization (ESI(–)/FT-ICR MS).



2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Angelica Bianco ◽  
Laurent Deguillaume ◽  
Nadine Chaumerliac ◽  
Mickaël Vaïtilingom ◽  
Miao Wang ◽  
...  

An amendment to this paper has been published and can be accessed via a link at the top of the paper.



2001 ◽  
Vol 79 (5-6) ◽  
pp. 546-551 ◽  
Author(s):  
Ryan P Rodgers ◽  
Christopher L Hendrickson ◽  
Mark R Emmett ◽  
Alan G Marshall ◽  
Mark Greaney ◽  
...  

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.



2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Angelica Bianco ◽  
Laurent Deguillaume ◽  
Nadine Chaumerliac ◽  
Mickaël Vaïtilingom ◽  
Miao Wang ◽  
...  


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