PuSH - Publication Server of Helmholtz Zentrum München

Schneider, E.* ; Giocastro, B.* ; Rüger, C.P.* ; Adam, T. ; Zimmermann, R.

Detection of polycyclic aromatic hydrocarbons in high organic carbon ultrafine particle extracts by electrospray ionization ultrahigh-resolution mass spectrometry.

J. Am. Soc. Mass Spectrom. 33, 2019–2023 (2022)
Postprint DOI PMC
Open Access Green
The detection of polycyclic aromatic hydrocarbons (PAHs) by electrospray ionization (ESI) without additional reagents or targeted setup changes to the ionization source was observed in ultrafine particle (UFP) extracts, with high organic carbon (OC) concentrations, generated by a combustion aerosol standard (CAST) soot generator. Particulate matter (PM) was collected on filters, extracted with methanol, and analyzed by ESI Fourier-transform ion cyclotron resonance mass spectrometry (FT-ICR MS). Next to oxygen-containing species, pure hydrocarbons were found to be one of the most abundant compound classes, detected as [M + Na]+ or [M + H]+ in ESI+ and mostly as [M - H]- in ESI-. The assigned hydrocarbon elemental compositions are identified as PAHs due to their high aromaticity index (AI > 0.67) and were additionally confirmed by MS/MS experiments as well as laser desorption ionization (LDI). Thus, despite the relatively low polarity, PAHs have to be considered in the molecular attribution of these model aerosols and/or fresh emissions with low salt content investigated by ESI.
Altmetric
Additional Metrics?
[➜Log in]
Edit extra informations Login
Publication type Article: Journal article
Document type Scientific Article
Corresponding Author
e-ISSN 1044-0305
Journal Journal of the American Society for Mass Spectrometry
Quellenangaben Volume: 33, Issue: 11, Pages: 2019–2023 Article Number: , Supplement: ,
Publisher Elsevier
Non-patent literature Publications
Reviewing status Peer reviewed
Institute(s) Cooperation Group Comprehensive Molecular Analytics (CMA)
Grants Horizon 2020 EU