气候变化领域集成服务门户(CCPortal): Secondary organic aerosol formation from the gas-phase reaction of guaiacol (2-methoxyphenol) with NO3 radicals

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DOI	10.1016/j.atmosenv.2020.117740
	Secondary organic aerosol formation from the gas-phase reaction of guaiacol (2-methoxyphenol) with NO3 radicals
	Meng L.; Coeur C.; Fayad L.; Houzel N.; Genevray P.; Bouzidi H.; Tomas A.; Chen W.
发表日期	2020
ISSN	1352-2310
卷号	240
英文摘要	Methoxyphenols are oxygenated aromatic compounds emitted by wood combustion (consequently to the pyrolysis of lignin). The atmospheric reaction of nitrate radical (NO3) with guaiacol (2-methoxyphenol), one of the principal representatives of this class of compounds has been investigated in the dark at (294 ± 2) K, atmospheric pressure and low relative humidity (RH < 2%). The formation of secondary organic aerosols (SOAs) has been studied in two simulation chambers. The concentrations time profiles of guaiacol were followed with a PTR-ToF-MS (Proton Transfer Mass Reaction – Time of Flight – Mass Spectrometer) and those of SOAs by an SMPS (Scanning Mobility Particle Sizer). Aerosol yields (Y) were calculated from the ratio of the suspended aerosol mass concentration corrected for wall losses (M0), to the total reacted guaiacol concentration assuming a particle density of 1.4 g cm−3. The aerosol yield increases as the initial guaiacol concentration rises, leading to yield values ranging from 0.01 to 0.21. A very good agreement was observed between the experiments performed in both chambers which gives confidence in the data obtained in this study. The organic aerosol formation can be represented by a one-product gas/particle partitioning absorption model with a stoichiometric coefficient α = 0.32 ± 0.04 and an equilibrium constant K = (4.2 ± 1.0) × 10−3 m3 μg−1. The chemical composition of the aerosols formed was studied after sampling on quartz fiber filter, ultrasonic extraction and analysis by ESI-LC-QToF-MS-MS (ElectroSpray Ionization - Liquid Chromatography - Quadrupole - Time of Flight – Tandem Mass Spectrometry). The oxidation products observed in the condensed phase are mostly nitro-aromatics; they display chemical structures with one, two and three aromatic rings. A reaction mechanism leading to these products has been proposed. To our knowledge, this work represents the first study on the SOAs formation from the reaction of guaiacol with NO3 radicals. © 2020 Elsevier Ltd
关键词	Guaiacol Nitro-aromatics NO3 radicals Secondary organic aerosols Simulation chamber
语种	英语
scopus关键词	Aerosols; Alcohols; Aromatic compounds; Aromatization; Atmospheric chemistry; Atmospheric humidity; Atmospheric pressure; Electrospray ionization; Equilibrium constants; Ionization of gases; Liquid chromatography; Mass spectrometry; Phase interfaces; Wood; Aerosol mass concentration; Low relative humidities; Organic aerosol formation; Quadrupole-time of flights; Scanning mobility particle sizer; Secondary organic aerosols; Stoichiometric coefficients; Tandem mass spectrometry; Silicon compounds; guaiacol; nitric oxide; aerosol formation; chemical composition; chemical compound; combustion; detection method; experimental study; gas phase reaction; radical; Article; atmospheric pressure; chemical composition; controlled study; equilibrium constant; humidity; liquid chromatography-mass spectrometry; particle size; priority journal; rate constant; reaction analysis; reaction time; secondary organic aerosol; time of flight mass spectrometry; ultrasound assisted extraction; Aerosols; Alcohols; Aromatic Compounds; Barometric Pressure; Liquid Chromatography; Wood
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/248980
作者单位	Laboratoire de Physico-Chimie de l'Atmosphère, Université du Littoral Côte d'Opale, Dunkerque, 59140, France; IMT Lille Douai, Univ. Lille, SAGE – Sciences de l'Atmosphère et Génie de l'Environnement, Lille, 59000, France; Centre Commun de Mesures, Université du Littoral Côte d'Opale, Dunkerque, 59140, France
推荐引用方式 GB/T 7714	Meng L.,Coeur C.,Fayad L.,et al. Secondary organic aerosol formation from the gas-phase reaction of guaiacol (2-methoxyphenol) with NO3 radicals[J],2020,240.
APA	Meng L..,Coeur C..,Fayad L..,Houzel N..,Genevray P..,...&Chen W..(2020).Secondary organic aerosol formation from the gas-phase reaction of guaiacol (2-methoxyphenol) with NO3 radicals.ATMOSPHERIC ENVIRONMENT,240.
MLA	Meng L.,et al."Secondary organic aerosol formation from the gas-phase reaction of guaiacol (2-methoxyphenol) with NO3 radicals".ATMOSPHERIC ENVIRONMENT 240(2020).