By a News Reporter-Staff News Editor at Health & Medicine Week -- Current study results on Chalcogens - Sulfur have been published. According to news reporting originating in Jiangsu, People’s Republic of China, by NewsRx journalists, research stated, “Zhaotong lignite (ZL) was sequentially extracted with cyclohexane, carbon disulfide, methanol, acetone, and isometric carbon disulfide/acetone mixed solvent to afford extracts 1-5 (E-1-E-5) under ultrasonic radiation at room temperature. In addition, ZL was characterized with solid-state C-13 nuclear magnetic resonance (SS C-13 NMR), Raman spectrometer and X-ray photoelectron spectrometer (XRPES), while the extracts were analyzed with a gas chromatograph/mass spectrometer along with a positive-ion (PI) and negative-ion (NI) electrospray ionization Fourier transform ion cyclotron resonance mass spectrometer (ESIFTICRMS).”
Financial supporters for this research include National Natural Science Foundation of China, Government of Xinjiang Uygur Autonomous Region, Government of Shanxi Province, Priority Academic Program Development of Jiangsu Higher Education Institutions.
The news reporters obtained a quote from the research from the China University of Mining and Technology, “According to the characterization with SS C-13 NMR, aliphatic carbons count for 59.5% of all the organic carbons in ZL, and each aromatic cluster contains 2 or 3 aromatic rings on average. The pyrrolic nitrogen and sulfones are the most abundant nitrogen and sulfur forms, respectively, in ZL based on the analysis with XRPES. ESIFTICRMS resolved thousands of basic and non-basic species, and the molecular masses are mainly concentrated in the range of 350-600 and 300-500 u, respectively. Acidic S1O3 class species with double bond equivalent values of 3-8 and carbon numbers of 6-39 are dominant species and could be attributed to acidic group-substituted thiophenes. Main nitrogen-containing species detected in the PI mode are basic N1O0-3, N2S2, and N2O1-8S1-2.”
According to the news reporters, the research concluded: “Most of the species were speculated to contain some core structures, such as pyridines, pyrimidines, or pyrazines.”
For more information on this research see: Characterization of nitrogen and sulfur-containing species in Zhaotong lignite and its extracts from ultrasonic extraction. Fuel , 2018;219():417-425. Fuel can be contacted at: Elsevier Sci Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, Oxon, England. (Elsevier - www.elsevier.com; Fuel - http://www.journals.elsevier.com/fuel/)
Our news correspondents report that additional information may be obtained by contacting Z.M. Zong, China Univ Min & Technol, Key Lab Coal Proc & Efficient Utilizat, Minist Educ, Xuzhou 221116, Jiangsu, People’s Republic of China. Additional authors for this research include S. Li, J. Liu and X.Y. Wei.
The direct object identifier (DOI) for that additional information is: https://doi.org/10.1016/j.fuel.2018.01.085. This DOI is a link to an online electronic document that is either free or for purchase, and can be your direct source for a journal article and its citation.
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CITATION: (2018-05-04), Studies Conducted at China University of Mining and Technology on Sulfur Recently Reported (Characterization of nitrogen and sulfur-containing species in Zhaotong lignite and its extracts from ultrasonic extraction), Health & Medicine Week, 2215, ISSN: 1532-4605, BUTTER® ID: 015602180
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