Electron paramagnetic resonance investigation of the free radicals in the gas and particulate phases of cigarette smoke using spin-trapping techniques

Ghosh, M., Ionita, P., McAughey, J. and Cunningham, F. (2008) Electron paramagnetic resonance investigation of the free radicals in the gas and particulate phases of cigarette smoke using spin-trapping techniques. ARKIVOC, 2008 (12). pp. 74-84. ISSN 1551-7004 doi: 10.3998/ark.5550190.0009.c09

Abstract/Summary

Free radicals in cigarette smoke have been studied using spin trapping EPR techniques. 2R4F reference cigarettes were smoked using 35 ml puff volumes of 2 seconds duration, once every 60 seconds. The particulate phase of the smoke was separated from the gas phase by passing the smoke through a Cambridge filter pad. For both phases, free radicals were measured and identified. A range of spin-traps was employed: PBN, DMPO, DEPMPO, and DPPH-PBN. In the gas-phase, short-lived carbon- and oxygen- centered radicals were identified; the ratios between them changed during the smoking runs. For the first puffs, C-centered radicals predominated while for the later puffs, O-centered radicals were mainly observed. The particulate phase and the ‘tar’ were studied as well.

Item Type	Article
URI	https://reading-clone.eprints-hosting.org/id/eprint/22220
Identification Number/DOI	10.3998/ark.5550190.0009.c09
Refereed	Yes
Divisions	Life Sciences > School of Chemistry, Food and Pharmacy > Department of Chemistry No Reading authors. Back catalogue items
Publisher	Arkat USA Inc
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