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Wang YG, Jiang WJ, Shen J, Wang W, Niu YX, Zhao W, Wei XY. Detoxification modification of coal-tar pitch by ultraviolet & microwave radiation-enhanced chemical reaction and toxicity evaluation by chemical index and cytotoxicity assay in vitro. JOURNAL OF HAZARDOUS MATERIALS 2021; 410:124648. [PMID: 33257128 DOI: 10.1016/j.jhazmat.2020.124648] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Revised: 11/18/2020] [Accepted: 11/19/2020] [Indexed: 05/13/2023]
Abstract
Although coal tar pitch (CTP) has a large yield in China, its large-scale and effective utilization is significantly hindered because of existing and possibly releasing polycyclic aromatic hydrocarbons (PAHs). Therefore, it is an imminent problem how to prepare an environmentally friendly CTP by detoxification modification. In the investigation, a typical CTP was subjected to structural characterization via solid-state 13C NMR and gas chromatograph/mass spectrometer, which confirmed the existence of dominant PAHs such as fluoranthene, pyrene, as well as benzo[a]pyrene, and few heterocyclic compounds. Subsequently, the CTP was modified using 10-undecenal via alkylation reaction enhanced by ultraviolet & microwave radiation. Compared with the original CTP, the total content of 16 toxic PAHs in the modified CTP decreased with a reduction efficiency of above 90%. According to different environmental standards, toxic equivalent quotient of CTP after modification was reduced by above 90%. In order to veritably and fully evaluate the toxicity of CTP, a living vascular smooth muscle cell (A-10 cell) in vitro was used in the cell counting kit-8 assay. The viability of A-10 cell was always higher when exposed to modified CTP than the original CTP. These results powerfully indicated that the enhanced modification was actually effective and efficient for reducing the toxicity of CTP.
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Affiliation(s)
- Yu-Gao Wang
- College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
| | - Wei-Jia Jiang
- College of Basic Medical Sciences, Shanxi University of Chinese Medicine, Taiyuan 030024, Shanxi, China; Institute of Environmental Science, Shanxi University, Taiyuan 030006, Shanxi, China
| | - Jun Shen
- College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China.
| | - Wei Wang
- College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
| | - Yan-Xia Niu
- College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
| | - Wei Zhao
- Key Laboratory of Coal Processing and Efficient Utilization, Ministry of Education, China University of Mining & Technology, Xuzhou 221116, Jiangsu, China
| | - Xian-Yong Wei
- Key Laboratory of Coal Processing and Efficient Utilization, Ministry of Education, China University of Mining & Technology, Xuzhou 221116, Jiangsu, China
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Levkina VV, Pirogov AV, Petruk ES, Jang M, Bolotnik TA, Mylenkova AY, Popik MV, Buszewski B, Shpigun OA. Application of microemulsions for the extraction, pre-concentration of PAHs as a tool for fast screening of perspective oil chemical markers. J LIQ CHROMATOGR R T 2019. [DOI: 10.1080/10826076.2018.1555168] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Valentina V. Levkina
- Laboratory of Chromatography, Division of Analytical Chemistry, Department of Chemistry, Lomonosov Moscow State University, Moscow, Russia
| | - Andrey V. Pirogov
- Laboratory of Chromatography, Division of Analytical Chemistry, Department of Chemistry, Lomonosov Moscow State University, Moscow, Russia
| | - Ekaterina S. Petruk
- Laboratory of Chromatography, Division of Analytical Chemistry, Department of Chemistry, Lomonosov Moscow State University, Moscow, Russia
| | - Mongjoo Jang
- Laboratory of Chromatography, Division of Analytical Chemistry, Department of Chemistry, Lomonosov Moscow State University, Moscow, Russia
| | - Timofey A. Bolotnik
- Laboratory of Chromatography, Division of Analytical Chemistry, Department of Chemistry, Lomonosov Moscow State University, Moscow, Russia
| | - Alexandra Y. Mylenkova
- Division of Geology and Geochemistry of Minerals, Department of Geology, Lomonosov Moscow State University, Moscow, Russia
| | - Michail V. Popik
- Division of Physical Chemistry, Department of Chemistry, Lomonosov Moscow State University, Moscow, Russia
| | - Bogusław Buszewski
- Division of Environmental Chemistry and Bioanalytics, Department of Chemistry, Nicolaus Copernicus University, Torun, Poland
| | - Oleg A. Shpigun
- Laboratory of Chromatography, Division of Analytical Chemistry, Department of Chemistry, Lomonosov Moscow State University, Moscow, Russia
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Vandergrift GW, Monaghan J, Krogh ET, Gill CG. Direct Analysis of Polyaromatic Hydrocarbons in Soil and Aqueous Samples Using Condensed Phase Membrane Introduction Tandem Mass Spectrometry with Low-Energy Liquid Electron Ionization. Anal Chem 2018; 91:1587-1594. [DOI: 10.1021/acs.analchem.8b04949] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Gregory W. Vandergrift
- Applied Environmental
Research Laboratories, Chemistry Department, Vancouver Island University, Nanaimo, British Columbia, Canada, V9R 5S5
- Chemistry Department, University of Victoria, Victoria, British Columbia, Canada, V8P 5C2
| | - Joseph Monaghan
- Applied Environmental
Research Laboratories, Chemistry Department, Vancouver Island University, Nanaimo, British Columbia, Canada, V9R 5S5
| | - Erik T. Krogh
- Applied Environmental
Research Laboratories, Chemistry Department, Vancouver Island University, Nanaimo, British Columbia, Canada, V9R 5S5
- Chemistry Department, University of Victoria, Victoria, British Columbia, Canada, V8P 5C2
| | - Chris G. Gill
- Applied Environmental
Research Laboratories, Chemistry Department, Vancouver Island University, Nanaimo, British Columbia, Canada, V9R 5S5
- Chemistry Department, University of Victoria, Victoria, British Columbia, Canada, V8P 5C2
- Chemistry Department, Simon Fraser University, Burnaby, British Columbia, Canada, V5A 1S6
- Environmental and Occupational Health Sciences Department, University of Washington, Seattle, Washington 98195, United States
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Zhang J, Yu JL, Zhang XH, Xu GY, An BG, Ju DY, Wang J, Wu XY, Zhou WM. Optical and conductive properties of functional materials extracted from coal tar pitches treated by air oxidization method. RUSS J APPL CHEM+ 2017. [DOI: 10.1134/s107042721704019x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Identification of organic sulfur compounds in coal bitumen obtained by different extraction techniques using comprehensive two-dimensional gas chromatography coupled to time-of-flight mass spectrometric detection. Anal Bioanal Chem 2011; 401:2433-44. [PMID: 21743984 DOI: 10.1007/s00216-011-5171-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2011] [Accepted: 06/07/2011] [Indexed: 10/18/2022]
Abstract
The determination of organic sulfur compounds (OSC) in coal is of great interest. Technically and operationally these compounds are not easily removed and promote corrosion of equipment. Environmentally, the burning of sulfur compounds leads to the emission of SO(x) gases, which are major contributors to acid rain. Health-wise, it is well known that these compounds have mutagenic and carcinogenic properties. Bitumen can be extracted from coal by different techniques, and use of gas chromatography coupled to mass spectrometric detection enables identification of compounds present in coal extracts. The OSC from three different bitumens were tentatively identified by use of three different extraction techniques: accelerated solvent extraction (ASE), ultrasonic extraction (UE), and supercritical-fluid extraction (SFE). Results obtained from one-dimensional gas chromatography (1D GC) coupled to quadrupole mass spectrometric detection (GC-qMS) and from two-dimensional gas chromatography with time-of-flight mass spectrometric detection (GC × GC-TOFMS) were compared. By use of 2D GC, a greater number of OSC were found in ASE bitumen than in SFE and UE bitumens. No OSC were identified with 1D GC-qMS, although some benzothiophenes and dibenzothiophenes were detected by use of EIM and SIM modes. GC × GC-TOFMS applied to investigation of OSC in bitumens resulted in analytical improvement, as more OSC classes and compounds were identified (thiols, sulfides, thiophenes, naphthothiophenes, benzothiophenes, and benzonaphthothiophenes). The roof-tile effect was observed for OSC and PAH in all bitumens. Several co-elutions among analytes and with matrix interferents were solved by use of GC × GC.
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