Carbon kinetic isotope effects in the gas-phase reactions of aromatic hydrocarbons with the OH radical at 296 ± 4 K
| dc.contributor.author | Anderson, Rebecca S. | |
| dc.contributor.author | Iannone, Richard | |
| dc.contributor.author | Thompson, Alexandra E. | |
| dc.contributor.author | Rudolph, Jochen | |
| dc.contributor.author | Huang, Lin | |
| dc.date.accessioned | 2010-05-10T19:32:00Z | |
| dc.date.available | 2010-05-10T19:32:00Z | |
| dc.date.issued | 2004 | |
| dc.description.abstract | The carbon kinetic isotope effects (KIEs) of the room temperature reactions of benzene and several light alkyl benzenes with OH radicals were studied in a reaction chamber at ambient pressure using gas chromatography coupled with online combustion and isotope ratio mass spectrometry (GCC‐IRMS). The KIEs are reported in per mil according to $\varepsilon$ (‰) = (KIE − 1) × 1000, where KIE = k12/k13. The following average KIEs were obtained, (all in ‰): benzene 7.53 ± 0.50; toluene 5.95 ± 0.28; ethylbenzene 4.34 ± 0.28; o‐xylene 4.27 ± 0.05, p‐xylene 4.83 ± 0.81; o‐ethyltoluene 4.71 ± 0.12 and 1,2,4‐trimethylbenzene 3.18 ± 0.09. Our KIE value for benzene + OH agrees with the only reported value known to us [Rudolph et al., 2000]. It is shown that measurements of the stable carbon isotope ratios of light aromatic compounds should be extremely useful to study atmospheric processing by the OH radical. | en |
| dc.identifier.uri | http://hdl.handle.net/10315/4083 | |
| dc.language.iso | en | en |
| dc.publisher | AGU | en |
| dc.rights.journal | http://www.agu.org/journals/jd/ | en |
| dc.title | Carbon kinetic isotope effects in the gas-phase reactions of aromatic hydrocarbons with the OH radical at 296 ± 4 K | en |
| dc.type | Article | en |