Analysis of mixed plastic pyrolysis oil by comprehensive two-dimensional gas chromatography coupled with low- and high-resolution time-of-flight mass spectrometry with the support of soft ionization
Copyright © 2022 Elsevier B.V. All rights reserved..
According to the annual production of plastics worldwide, in 2020 about 370 million tons of plastic were produced in the world. Chemical recycling, particularly pyrolysis of plastic wastes, could be a valuable solution to resolve these problems and provide an alternative pathway to produce "recycled" chemical products for the petrochemical industry. Nevertheless, the pyrolysis oils need a detailed characterization before the upgrading test to re-use them to generate new recycled products. Multidimensional gas chromatography coupled with both low- and high-resolution time-of-flight mass spectrometers was employed for a detailed investigation among and within different chemical classes present in bio-plastic oil. The presence of several isomeric species as well as homologs series did not allow a reliable molecular identification, except for a few compounds that showed both MS similarity >800/1000 and retention index within ±20. Indeed, the identification of several isomeric species was assessed by high-resolution mass spectrometry equipped with photoionization interface. This soft ionization mode was an additional filter in the identification step allowing unambiguous identification of analytes not identified by the standard electron ionization mode at 70 eV. The injection method was also optimized using a central composite design to successfully introduce a wide range of carbon number compounds without discrimination of low/high boiling points.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:252 |
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| Enthalten in: |
Talanta - 252(2023) vom: 15. Jan., Seite 123799 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Beccaria, Marco [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Completed 10.11.2022 Date Revised 10.11.2022 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.talanta.2022.123799 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 520 | |a According to the annual production of plastics worldwide, in 2020 about 370 million tons of plastic were produced in the world. Chemical recycling, particularly pyrolysis of plastic wastes, could be a valuable solution to resolve these problems and provide an alternative pathway to produce "recycled" chemical products for the petrochemical industry. Nevertheless, the pyrolysis oils need a detailed characterization before the upgrading test to re-use them to generate new recycled products. Multidimensional gas chromatography coupled with both low- and high-resolution time-of-flight mass spectrometers was employed for a detailed investigation among and within different chemical classes present in bio-plastic oil. The presence of several isomeric species as well as homologs series did not allow a reliable molecular identification, except for a few compounds that showed both MS similarity >800/1000 and retention index within ±20. Indeed, the identification of several isomeric species was assessed by high-resolution mass spectrometry equipped with photoionization interface. This soft ionization mode was an additional filter in the identification step allowing unambiguous identification of analytes not identified by the standard electron ionization mode at 70 eV. The injection method was also optimized using a central composite design to successfully introduce a wide range of carbon number compounds without discrimination of low/high boiling points | ||
| 650 | 4 | |a Journal Article | |
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| 650 | 4 | |a Comprehensive 2D-GC (GC×GC)-TOFMS | |
| 650 | 4 | |a GC soft Ionization HRMS | |
| 650 | 4 | |a PTV optimization | |
| 650 | 4 | |a Photoionization interface (PI) | |
| 650 | 4 | |a Plastic pyrolysis oil | |
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| 700 | 1 | |a Purcaro, Giorgia |e verfasserin |4 aut | |
| 700 | 1 | |a Mendes Siqueira, Anna Luiza |e verfasserin |4 aut | |
| 700 | 1 | |a Maniquet, Adrien |e verfasserin |4 aut | |
| 700 | 1 | |a Giusti, Pierre |e verfasserin |4 aut | |
| 700 | 1 | |a Focant, Jean-François |e verfasserin |4 aut | |
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