Gas-chromatographic characterization of sulfur-containing compounds. 6. Heterocyclic compounds

1979 ◽  
Vol 28 (8) ◽  
pp. 1630-1632 ◽  
Author(s):  
R. V. Golovnya ◽  
V. G. Garbuzov ◽  
A. F. A�rov
Keyword(s):  
Heterocyclic Compounds ◽  
Chromatographic Characterization ◽  
Sulfur Containing ◽  
Sulfur Containing Compounds

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.

Molecular characterization of sulfur-containing compounds in petroleum

Fuel ◽  
2018 ◽  
Vol 221 ◽  
pp. 144-158 ◽  
Author(s):  
Yehua Han ◽  
Yanfen Zhang ◽  
Chunming Xu ◽  
Chang Samuel Hsu
Keyword(s):  
Molecular Characterization ◽  
Sulfur Containing ◽  
Sulfur Containing Compounds

scholarly journals CHARACTERIZATION OF TETRAGENOCOCCUS HALOPHILUS FROM VIETNAMESE FISH SAUCE

2019 ◽  
Vol 57 (5) ◽  
pp. 544
Author(s):  
Le Thanh Ha ◽  
Nguyen Nam Trinh ◽  
Le Thi My Chau ◽  
Nguyen Thi Minh Tu
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Volatile Compounds ◽  
Volatile Compound ◽  
Fish Sauce ◽  
Tetragenococcus Halophilus ◽  
Halophilic Lactic Acid Bacteria ◽  
Sulfur Containing ◽  
Sulfur Containing Compounds

The intracellular aminopeptidase activities and volatile compound profile of isolated halophilic lactic acid bacteria Tetragenococcus halophilus was investigated. Tetragenococcus halophilus CH2-4 and CH6-2 exhibited highest aminopeptidase activities 2.2 U/mL toward Glutamic-pNA. Meanwhile T. halophilus CH6-1 and V7-2 showed highest aminopeptidase activities 1.4 U/mL toward Leucine-pNA.  The total 19 volatile compounds, including esters, alcohols, ketones, phenols, hydrocarbons and sulfur containing compounds were detected in fish broth inoculated with T. halophilus.T. halophilus CH6-2 produced most volatile compounds, 10/19 detected ones in this study.  

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