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  Development of a Non-Targeted Method to Study Petroleum Polyaromatic Hydrocarbons in Soil by Ultrahigh Resolution Mass Spectrometry Using Multiple Ionization Methods

Luo, R., & Schrader, W. (2022). Development of a Non-Targeted Method to Study Petroleum Polyaromatic Hydrocarbons in Soil by Ultrahigh Resolution Mass Spectrometry Using Multiple Ionization Methods. Polycyclic Aromatic Compounds, 42(2), 643-658. doi:10.1080/10406638.2020.1748665.

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 Creators:
Luo, Ruoji1, Author           
Schrader, Wolfgang1, Author           
Affiliations:
1Service Department Schrader (MS), Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445629              

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Free keywords: Atmospheric pressure ionization methods; Fourier transform mass spectrometry; polycyclic aromatic hydrocarbons; Soxhlet extraction; supercritical fluid extraction
 Abstract: A non-targeted method for analyzing petroleum hydrocarbons in soil was established by extracting a wide range of PAC compounds using a model system. Here, sand was spiked with a heavy crude oil, which simulated a hydrocarbon contaminated soil of low soil organic matter (SOM). Soxhlet and supercritical fluid extraction (SFE) was optimized for PAXHs analysis in soil. A concept of using multidimensional ionization for ultrahigh resolution mass spectrometry was employed for detection using electrospray ionization (ESI), atmospheric pressure chemical ionization (APCI) and atmospheric pressure photo ionization (APPI) for the analysis of polycyclic aromatic hydrocarbons (PAHs) and polycyclic aromatic heterocycles. Fourier transform mass spectrometry (FT-MS) with its ultrahigh mass resolution and high mass accuracy enables an unambiguous assignment of the detected ions obtained from different ionization methods, which provides a secure and comprehensive view of contaminants in soil on a molecular level. Over 95% of the spiked crude oil could be recovered by Soxhlet extraction using toluene, dichloromethane and acetone:n-hexane (1:1, v:v). In comparison, when using SFE with supercritical CO2 the recovery was only about 50% but showed more polar compounds. Detailed analyses showed that besides 16 PAHs, a wide range with more than 10,000 PAXHs could also be successfully extracted.

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Language(s): eng - English
 Dates: 2019-12-022020-03-252020-04-172022-02-14
 Publication Status: Issued
 Pages: 6
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1080/10406638.2020.1748665
 Degree: -

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Title: Polycyclic Aromatic Compounds
Source Genre: Journal
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Publ. Info: Reading, Berks, England : Gordon Breach Sci Publ Ltd
Pages: - Volume / Issue: 42 (2) Sequence Number: - Start / End Page: 643 - 658 Identifier: ISSN: 1040-6638
CoNE: https://pure.mpg.de/cone/journals/resource/1040-6638