Application of low-energy-capable electron ionization with high-resolution mass spectrometer for characterization of pyrolysis oils from plastics

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F44555601%3A13520%2F23%3A43897934" target="_blank" >RIV/44555601:13520/23:43897934 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21230/23:00370593

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0021967323006702?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0021967323006702?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.chroma.2023.464445" target="_blank" >10.1016/j.chroma.2023.464445</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Application of low-energy-capable electron ionization with high-resolution mass spectrometer for characterization of pyrolysis oils from plastics

Popis výsledku v původním jazyce

Pyrolysis is a promising way of waste transformation into new valuable products. Pyrolytic oil is a mixture ofhundreds of compounds and it requires detailed and accurate characterization for future applications. One of themost widely used techniques is mass spectrometry in combination with electron ionization. Tuneable ionizationprovides benefits including additional structural information and validation of molecular ion due to limitedfragmentation at lower energies compared to conventional 70 eV, which provides spectral matches towards libraries. This approach was applied to the compounds identification and group characterization of virgin plasticspolyvinyl chloride (PVC), polypropylene (PP), polystyrene (PS), high-density polyethylene (HDPE), low-densitypolyethylene (LDPE) and their mixture. The use of lower ionization energy was beneficial for distinction of alkanes, iso-alkanes and aromatics. On the contrary to 70 eV, significantly higher fragmentation in branching ofiso-alkanes at 12 eV was observed with higher yield of molecular ion also for n-alkane. More than 50 % ofdetected peaks were identified up to the retention time of icosane. The main analytes of produced pyrolysis oilwere monoaromatic (from PVC and PS), alkene/cycloalkane (from PP and mixture). In the case of HDPE andLDPE the main compounds were 1-n-alkenes and n-alkanes. The applied methodology reveals compound group,carbon chain length and degree of unsaturation with higher confidence and success rate compared to traditionalnominal mass 70 eV datasets

Název v anglickém jazyce

Application of low-energy-capable electron ionization with high-resolution mass spectrometer for characterization of pyrolysis oils from plastics

Popis výsledku anglicky

Pyrolysis is a promising way of waste transformation into new valuable products. Pyrolytic oil is a mixture ofhundreds of compounds and it requires detailed and accurate characterization for future applications. One of themost widely used techniques is mass spectrometry in combination with electron ionization. Tuneable ionizationprovides benefits including additional structural information and validation of molecular ion due to limitedfragmentation at lower energies compared to conventional 70 eV, which provides spectral matches towards libraries. This approach was applied to the compounds identification and group characterization of virgin plasticspolyvinyl chloride (PVC), polypropylene (PP), polystyrene (PS), high-density polyethylene (HDPE), low-densitypolyethylene (LDPE) and their mixture. The use of lower ionization energy was beneficial for distinction of alkanes, iso-alkanes and aromatics. On the contrary to 70 eV, significantly higher fragmentation in branching ofiso-alkanes at 12 eV was observed with higher yield of molecular ion also for n-alkane. More than 50 % ofdetected peaks were identified up to the retention time of icosane. The main analytes of produced pyrolysis oilwere monoaromatic (from PVC and PS), alkene/cycloalkane (from PP and mixture). In the case of HDPE andLDPE the main compounds were 1-n-alkenes and n-alkanes. The applied methodology reveals compound group,carbon chain length and degree of unsaturation with higher confidence and success rate compared to traditionalnominal mass 70 eV datasets

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

10406 - Analytical chemistry

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal Of Chromatography A

ISSN

0021-9673

e-ISSN

1873-3778

Svazek periodika

464445

Číslo periodika v rámci svazku

1711

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

10

Strana od-do

1-10

Kód UT WoS článku

001096629400001

EID výsledku v databázi Scopus

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