气候变化领域集成服务门户(CCPortal): Observations of gas-phase products from the nitrate-radical-initiated oxidation of four monoterpenes

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DOI	10.5194/acp-22-9017-2022
	Observations of gas-phase products from the nitrate-radical-initiated oxidation of four monoterpenes
	Dam, Michelia; Draper, Danielle C.; Marsavin, Andrey; Fry, Juliane L.; Smith, James N.
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	9017
结束页码	9031
卷号	22 期号:13 页码:15
英文摘要	Chemical ionization mass spectrometry with the nitrate reagent ion (NO3- CIMS) was used to investigate the products of the nitrate radical (NO3) initiated oxidation of four monoterpenes in laboratory chamber experiments. alpha-Pinene, beta-pinene, Delta-3-carene, and alpha-thujene were studied. The major gas-phase species produced in each system were distinctly different, showing the effect of monoterpene structure on the oxidation mechanism and further elucidating the contributions of these species to particle formation and growth. By comparing groupings of products based on the ratios of elements in the general formula CwHxNyOz, the relative importance of specific mechanistic pathways (fragmentation, termination, and radical rearrangement) can be assessed for each system. Additionally, the measured time series of the highly oxidized reaction products provide insights into the ratio of relative production and loss rates of the high-molecular-weight products of the Delta-3-carene system. The measured effective O:C ratios of reaction products were anticorrelated with new particle formation intensity and number concentration for each system; however, the monomer : dimer ratios of products had a small positive trend. Gas-phase yields of oxidation products measured by NO3- CIMS correlated with particle number concentrations for each monoterpene system, with the exception of alpha-thujene, which produced a considerable amount of low-volatility products but no particles. Species-resolved wall loss was measured with NO3- CIMS and found to be highly variable among oxidized reaction products in our stainless steel chamber.
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000823505600001
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/273645
作者单位	University of California System; University of California Irvine; Reed College - Oregon
推荐引用方式 GB/T 7714	Dam, Michelia,Draper, Danielle C.,Marsavin, Andrey,et al. Observations of gas-phase products from the nitrate-radical-initiated oxidation of four monoterpenes[J],2022,22(13):15.
APA	Dam, Michelia,Draper, Danielle C.,Marsavin, Andrey,Fry, Juliane L.,&Smith, James N..(2022).Observations of gas-phase products from the nitrate-radical-initiated oxidation of four monoterpenes.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(13),15.
MLA	Dam, Michelia,et al."Observations of gas-phase products from the nitrate-radical-initiated oxidation of four monoterpenes".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.13(2022):15.