Characterization of organic nitrate constituents of secondary organic aerosol (SOA) from nitrate-radical-initiated oxidation of limonene using high-resolution chemical

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Creator/Principal investigator(s)

Mattias Hallquist - University of Gothenburg, Department of Chemistry & Molecular Biology

Description

The gas-phase nitrate radical (NO3*) initiated oxidation of limonene can produce organic nitrate species with varying physical properties. Low-volatility products can contribute to secondary organic aerosol (SOA) formation and organic nitrates may serve as a NOx reservoir, which could be especially important in regions with high biogenic emissions. This work presents the measurement results from flow reactor studies on the reaction of NO3 with limonene using a High-Resolution Time-of-Flight Chemical Ionization Mass Spectrometer (HR-ToF-CIMS) combined with a Filter Inlet for Gases and AEROsols (FIGAERO). Major condensed-phase species were compared to those in the Master Chemical Mechanism (MCM) limonene mechanism, and many non-listed species were identified. The volatility properties of the most prevalent organic nitrates in the produced SOA were determined. Analysis of multiple experiments resulted in the identification of several dominant species (including C10H15NO6, C10H17NO6, C8H11NO6, C10H17NO7, and C9H13NO7 ) that occurred in the SOA under all conditions considered. Additionally, the for

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Subject area

SCIENCE AND TECHNOLOGY (CESSDA Topic Classification)
Natural Sciences, Chemical Sciences (The Swedish standard of fields of research 2011)

Creator/Principal investigator(s)

Mattias Hallquist - University of Gothenburg, Department of Chemistry & Molecular Biology

Identifiers

SND-ID: SND 1047

Description

The gas-phase nitrate radical (NO3*) initiated oxidation of limonene can produce organic nitrate species with varying physical properties. Low-volatility products can contribute to secondary organic aerosol (SOA) formation and organic nitrates may serve as a NOx reservoir, which could be especially important in regions with high biogenic emissions. This work presents the measurement results from flow reactor studies on the reaction of NO3 with limonene using a High-Resolution Time-of-Flight Chemical Ionization Mass Spectrometer (HR-ToF-CIMS) combined with a Filter Inlet for Gases and AEROsols (FIGAERO). Major condensed-phase species were compared to those in the Master Chemical Mechanism (MCM) limonene mechanism, and many non-listed species were identified. The volatility properties of the most prevalent organic nitrates in the produced SOA were determined. Analysis of multiple experiments resulted in the identification of several dominant species (including C10H15NO6, C10H17NO6, C8H11NO6, C10H17NO7, and C9H13NO7 ) that occurred in the SOA under all conditions considered. Additionally, the for

... Show more..

Language

English

Geographic spread

Geographic location: Sweden

Funding

Funding agency: Swedish Research Council

Funding agency’s reference number: 2015-04123

Funding agency: Swedish Research Council

Funding agency’s reference number: 2014-05332

Funding agency: Swedish Research Council

Funding agency’s reference number: 2013-06917

Funding agency: The Swedish Research Council Formas

Funding agency’s reference number: 2015-1537

Subject area

SCIENCE AND TECHNOLOGY (CESSDA Topic Classification)
Natural Sciences, Chemical Sciences (The Swedish standard of fields of research 2011)

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Publications

Faxon, C., Hammes, J., Pathak, R. K., and Hallquist, M.: Characterization of organic nitrate constituents of secondary organic aerosol (SOA) from nitrate-radical-initiated oxidation of limonene using High-Resolution Chemical Ionization Mass Spectrometry, Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acp-2017-584, in review, 2017.

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Iodide-HR-ToF-CIMS Data from NO3-initiated Oxidation of Limonene

Citation

Mattias Hallquist. University of Gothenburg, Department of Chemistry & Molecular Biology (2018). <em>Iodide-HR-ToF-CIMS Data from NO3-initiated Oxidation of Limonene</em>. Swedish National Data Service. Version 1.0. <a href="https://doi.org/10.5878/002984">https://doi.org/10.5878/002984</a>

Creator/Principal investigator(s)

Mattias Hallquist - University of Gothenburg, Department of Chemistry & Molecular Biology

Data format / data structure

Numeric

Published: 2018-04-09