Analysis of C1-C16 Hydrocarbons Using Dual-Column Capillary GC: Application to Exhaust Emissions from Passenger Car and Motorcycle Engines

Jemma, C.A.; Shore, P. R.; Widdicombe, K.A.

doi:10.1093/chromsci/33.1.34

Cited by 74 publications

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“…Isoprene and other conjugated dienes are also emitted in urban environments from petrol and diesel engine exhaust or fuel vapor (Jemma et al, 1995;Shi and Harrison, 1997;Smith et al, 2002;Nelson et al, 2008;Agrawal et al, 2008), and measurements in the urban environment have been reported (Jeffries, 1995;Calvert et al, 2002;Liu et al, 2008). A representative conjugated diene emitted from anthropogenic sources is 1,3-butadiene, which is more volatile than isoprene.…”

Section: Introductionmentioning

confidence: 99%

Secondary organic aerosol formation from the photooxidation of isoprene, 1,3-butadiene, and 2,3-dimethyl-1,3-butadiene under high NO<sub>x</sub> conditions

et al. 2011

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Abstract. Secondary organic aerosol (SOA) formation from atmospheric oxidation of isoprene has been the subject of multiple studies in recent years; however, reactions of other conjugated dienes emitted from anthropogenic sources remain poorly understood. SOA formation from the photooxidation of isoprene, isoprene-1-13 C, 1,3-butadiene, and 2,3-dimethyl-1,3-butadiene is investigated for high NO x conditions. The SOA yield measured in the 1,3-butadiene/NO x /H 2 O 2 irradiation system (0.089-0.178) was close to or slightly higher than that measured with isoprene under similar NO x conditions (0.077-0.103), suggesting that the photooxidation of 1,3-butadiene is a possible source of SOA in urban air. In contrast, a very small amount of SOA particles was produced in experiments with 2,3-dimethyl-1,3-butadiene. Off-line liquid chromatography -mass spectrometry analysis revealed that the signals of oligoesters comprise a major fraction (0.10-0.33) of the signals of the SOA products observed from all dienes investigated. The oligoesters originate from the unsaturated aldehyde gas phase diene reaction products; namely, semi-volatile compounds produced by the oxidation of the unsaturated aldehyde undergo particle-phase oligoester formation. Oligoesters produced by the dehydration reaction between nitrooxypolyol and 2-methylglyceric acid monomer or its oligomer were also characterized in these experiments with isoprene as the Correspondence to: D. R. Cocker III (dcocker@engr.ucr.edu) starting diene. These oligomers are possible sources of the 2-methyltetrols found in ambient aerosol samples collected under high NO x conditions. Furthermore, in low-temperature experiments also conducted in this study, the SOA yield measured with isoprene at 278 K was 2-3 times as high as that measured at 300 K under similar concentration conditions. Although oligomerization plays an important role in SOA formation from isoprene photooxidation, the observed temperature dependence of SOA yield is largely explained by gas/particle partitioning of semi-volatile compounds.

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Section: Introductionmentioning

confidence: 99%

Secondary organic aerosol formation from the photooxidation of isoprene, 1,3-butadiene, and 2,3-dimethyl-1,3-butadiene under high NO<sub>x</sub> conditions

et al. 2011

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“…Indeed a number of unsaturated carbonyl compounds are oxidation products of monoterpenes and conjugated dienes. [33] Emissions of non-terpenoid compounds, which include a huge variety of oxygenated compounds, represent 40 % of emissions from vegetation. [2] Moreover anthropogenic emissions of oxygenated compounds have increased for several years.…”

Section: Introductionmentioning

confidence: 99%

Prediction of Rate Constants for Gas‐Phase Reactions of Nitrate Radical with Organic Compounds: A New Structure–Activity Relationship

2010

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A new structure-activity relationship (SAR), based on parametrization of the molecular structure according to the group-additivity method, is presented. On the basis of existing experimental data for the degradability of approximately 150 organic compounds by the NO(3) radical, this new SAR is developed to estimate the rate constants for reactions with NO(3) radical. At night, nitrate radicals are the most important oxidant of volatile organic compounds. The rate constants for their reactions are therefore essential to the understanding of VOC degradation and atmospheric modelling. The database used for the SAR development includes most classes of compounds such as alkanes, alkenes (acyclic and cyclic), dienes, terpenes and saturated and unsaturated oxygenated compounds (including alcohols, ketones, ethers and esters). The proposed SAR shows good efficiency, as 91% of the rate constants are reproduced within a factor of two. The overall agreement between measured and predicted rate constants is very good for most of the unsaturated and saturated compounds, although for saturated alcohols it is less reliable.

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“…a,b-Unsaturated and oxygenated volatile organic compounds (VOCs) are olefins that can be formed by the photooxidation of isoprene, terpenes and other alkenes from vegetation [1,2] as well as from conjugated dienes emitted from the road traffic [3].…”

Section: Introductionmentioning

confidence: 99%

Kinetic study of the reactions of Cl atoms with α,β-unsaturated carbonyl compounds at atmospheric pressure and structure activity relations (SARs)

Teruel

Achad

Blanco

2009

Chemical Physics Letters

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Analysis of C1-C16 Hydrocarbons Using Dual-Column Capillary GC: Application to Exhaust Emissions from Passenger Car and Motorcycle Engines

Cited by 74 publications

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Secondary organic aerosol formation from the photooxidation of isoprene, 1,3-butadiene, and 2,3-dimethyl-1,3-butadiene under high NO<sub>x</sub> conditions

Secondary organic aerosol formation from the photooxidation of isoprene, 1,3-butadiene, and 2,3-dimethyl-1,3-butadiene under high NO<sub>x</sub> conditions

Prediction of Rate Constants for Gas‐Phase Reactions of Nitrate Radical with Organic Compounds: A New Structure–Activity Relationship

Kinetic study of the reactions of Cl atoms with α,β-unsaturated carbonyl compounds at atmospheric pressure and structure activity relations (SARs)

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Analysis of C1-C16 Hydrocarbons Using Dual-Column Capillary GC: Application to Exhaust Emissions from Passenger Car and Motorcycle Engines

Cited by 74 publications

References 0 publications

Secondary organic aerosol formation from the photooxidation of isoprene, 1,3-butadiene, and 2,3-dimethyl-1,3-butadiene under high NO&lt;sub&gt;x&lt;/sub&gt; conditions

Secondary organic aerosol formation from the photooxidation of isoprene, 1,3-butadiene, and 2,3-dimethyl-1,3-butadiene under high NO&lt;sub&gt;x&lt;/sub&gt; conditions

Prediction of Rate Constants for Gas‐Phase Reactions of Nitrate Radical with Organic Compounds: A New Structure–Activity Relationship

Kinetic study of the reactions of Cl atoms with α,β-unsaturated carbonyl compounds at atmospheric pressure and structure activity relations (SARs)

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Secondary organic aerosol formation from the photooxidation of isoprene, 1,3-butadiene, and 2,3-dimethyl-1,3-butadiene under high NO<sub>x</sub> conditions

Secondary organic aerosol formation from the photooxidation of isoprene, 1,3-butadiene, and 2,3-dimethyl-1,3-butadiene under high NO<sub>x</sub> conditions