scholarly journals Characterization of Vanadium and Sulfur Containing Compounds of Kazakhstan Petroleum Vacuum Residuum

2021 ◽  
Author(s):  
Yerdos Ongarbayev ◽  
Shynar Oteuli ◽  
Yerbol Tileuberdi ◽  
Yahe Zhang ◽  
Fang Zheng ◽  
...  
Keyword(s):  
Cyclotron Resonance ◽  
Bulk Property ◽  
Ion Cyclotron Resonance ◽  
Molecular Weights ◽  
Ft Icr Ms ◽  
Positive Ion ◽  
Sulfur Containing ◽  
Sulfur Containing Compounds ◽  
Ft Icr

In the paper, bulk property and chemical composition of Kazakhstan vacuum residuum were characterized. Sulfides and thiophenes were selectively isolated from the residuum and characterized by Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS). Molecular weights of the sulfur compounds were varied from 150 to 800 Da and S1 , S2 , O1S1 , O2S1 , N1S1 class species were assigned in the heavy oil derived methylsulfonium. Vanadyl porphyrins characterized by positive-ion electrospray ionization and FT-ICR MS, which showed that etioporphyrins (ETIO) (CnH2n-28N4V1O1 , corresponding to DBE = 17) and deoxophylloerythroetioporphyrins (DPEP) (CnH2n-30N4V1O1, corresponding to DBE = 18). It should be noted that the vanadyl porphyrins were most abundant.

Detection of chemical constituents in Gegenqinlian decoction by ultra-high performance liquid chromatography coupled with Fourier transform ion cyclotron resonance mass spectrometry

2017 ◽  
Vol 9 (40) ◽  
pp. 5890-5902 ◽  
Author(s):  
Ting Liu ◽  
Yue Cui ◽  
Xiumin Tian ◽  
Songhe Li ◽  
Fei Han ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
High Performance Liquid Chromatography ◽  
Fourier Transform ◽  
Cyclotron Resonance ◽  
High Performance ◽  
Chemical Constituents ◽  
Ion Cyclotron Resonance ◽  
Ft Icr Ms ◽  
Ft Icr

A rapid and sensitive UHPLC-FT-ICR-MS method was employed for the systematic characterization of GQLD.

scholarly journals Molecular characterization of aerosol-derived water soluble organic carbon using ultrahigh resolution electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry

2008 ◽  
Vol 8 (2) ◽  
pp. 6539-6569 ◽  
Author(s):  
A. S. Wozniak ◽  
J. E. Bauer ◽  
R. L. Sleighter ◽  
R. M. Dickhut ◽  
P. G. Hatcher
Keyword(s):  
New York ◽  
Cyclotron Resonance ◽  
Water Soluble ◽  
Ion Cyclotron Resonance ◽  
Electrospray Ionization Fourier Transform ◽  
Water Soluble Organic Carbon ◽  
Soluble Organic Carbon ◽  
Ft Icr Ms ◽  
Ft Icr

Abstract. Despite the acknowledged relevance of aerosol water-soluble organic carbon (WSOC) to climate and biogeochemical cycling, characterization of aerosol WSOC has been limited. Electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry (ESI FT-ICR MS) is utilized in the present study to provide detailed molecular-level characterization of the high molecular weight (HMW; m/z>223) component of aerosol-derived WSOC collected from rural sites in Virginia and New York, USA. More than 3000 organic compounds were detected by ESI FT-ICR MS within a m/z range of 223–600 for each sample. Approximately 86% (Virginia) and 78% (New York) of these peaks were assigned molecular formulas using only carbon (C), hydrogen (H), oxygen (O), nitrogen (N), and sulfur (S) as elemental constituents. H/C and O/C molar ratios were plotted on van Krevelen diagrams and indicated a strong contribution of lignin-like and lipid-like compounds to the aerosol-derived WSOC samples. Double bond equivalents were calculated from the molecular formulas and used to identify black carbon (BC) compounds present in aerosol WSOC. BC compounds were found to comprise only 1–4% of the identified compounds in the aerosol-derived WSOC. Several high magnitude peaks in the mass spectra of both samples corresponded to molecular formulas consistent with molecular formulas proposed in previous secondary organic aerosol (SOA) laboratory investigations indicating that SOAs are important constituents of the WSOC. Overall, ESI FT-ICR MS provides the level of molecular characterization needed for detailed compositional and source information of the high molecular weight constituents of aerosol-derived WSOC.

Sulfur-containing species in the extraction residue from Xianfeng lignite characterized by X-ray photoelectron spectrometry and electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry

RSC Advances ◽  
2015 ◽  
Vol 5 (10) ◽  
pp. 7125-7130 ◽  
Author(s):  
Fang-Jing Liu ◽  
Xian-Yong Wei ◽  
Yu-Gao Wang ◽  
Peng Li ◽  
Zhan-Ku Li ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Fourier Transform ◽  
Cyclotron Resonance ◽  
Ion Cyclotron Resonance ◽  
X Ray ◽  
Electrospray Ionization Fourier Transform ◽  
Detailed Composition ◽  
Ft Icr Ms ◽  
Sulfur Containing ◽  
Ft Icr

Detailed composition of sulfur-containing species in the extraction residue from Xianfeng lignite was characterized by XPS and ESI FT-ICR MS.

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