Some Components of Gas Phase of Cigarette Smoke

Abstract

The analysis of the gas phase of cigarette smoke by application of an infrared absorption compensation technique has been extended to cigarette smoke from two additional tobacco compositions. Compounds identified and quantitatively determined that were not reported previously include butane, isobutylene, benzene, toluene, furan, and 2-methylfuran. A table lists the most useful absorption bands for the compounds identified, and several absorption bands for substances not yet identified are discussed. The differences observed in the concentrations of several constituents are discussed on the basis of the different types of tobaccos investigated. EXTENSIONof previous studies of the gas phase of cigarette smoke to two additional tobacco compositions-a blend of 50% cased hurley-50% bright and turkish tobacco sampleswas desirable to supplement data previously reported ( 21). The results reported in the present paper and the previous one (21) essentially complete the authors' study of the gas phase of smoke from cigarettes made from the chief types of cigarette tobaccos. It is felt that with the exception of some saturated hydrocarbons and possibly a heterocyclic compound as yet unidentified, the major components of the gas phase have been qualitatively and quantitatively established. There remains a considerable number of minor constituents on which further study could be made, but pursuit of such a program will require rather large numbers of cigarettes as a sample and would ad-visedly make use of more effective methods of fractionation than have been used in the present or previous studies. The LeRoy distilling column (19) and gas chromatography (11^-16) hold considerably more promise in this respect than the method used in the present investigation, which employs trap-to-trap type of distillation.

Measurements of Low Concentrations of Carbonyl Sulfide

“…These. figures agree with those reported earlier by Philippe et al( 11) and Horton et al (S), but are substancially lower than those reported by Osborne et al(10). Measuremencs on sidestream smoke showed values eight to ten times lo\\•er than in mainstream smoke.…”

“…Carbonyl sulfide (COS) has been reported to be present in the gas phase of cigarette smoke in a concentration of 20-40 11g/cigarette (5,11) or 150-500 11glcigarette (10).…”

In-situ analysis of the gas- and particle-phase in cigarette smoke by chemical ionization TOF-MS

“…small-chain alkanes that are known to be present in gas-phase cigarette smoke in comparably large concentrations (Philippe & Hobbs, 1956), including methane, ethane, propane, and butane, do not react with protonated water (Spanel & Smith, 1998) and are thus not detected in the present study. Fig.…”

Some Neutral Components of Cigarette Smoke (I)

“…Recently, J. S. Osborne et a 1. 12 ) and R.J. Philippe et al 13) have also confirmed its presence in cigarette smoke by an infrared compensation absorption procedure and mass spectral study.…”