Characterization of complex hydrocarbons in cigarette smoke condensate by gas chromatography-mass spectrometry and comprehensive two-dimensional gas chromatography-time-of-flight mass spectrometry.
Gas chromatography-mass spectrometry with electron ionization and positive-ion chemical ionization and comprehensive two-dimensional gas chromatography-time-of-flight mass spectrometry (GC x GC-TOF-MS) were applied for the characterization of the chemical composition of complex hydrocarbons in the non-polar neutral fraction of cigarette smoke condensates. Automated data processing by TOF-MS software combined with structured chromatograms and manual review of library hits were used to assign the components from GC x GC-TOF-MS analysis. The distributions of aliphatic hydrocarbons and aromatics were also investigated. Over 100 isoprenoid hydrocarbons were detected, including carotene degradation products, phytadiene isomers and carbocyclic diterpenoids. A total of 1800 hydrocarbons were tentatively identified, including aliphatic hydrocarbons, aromatics, and isoprenoid hydrocarbons. The identified hydrocarbons by GC x GC-TOF-MS were far more than those by GC-MS.
Lu
Xin
X
National Chromatographic R&A Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116011, China.
Zhao
Mingyue
M
Kong
Hongwei
H
Cai
Junlan
J
Wu
Jianfang
J
Wu
Ming
M
Hua
Ruixiang
R
Liu
Jianfu
J
Xu
Guowang
G
D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D006838:Hydrocarbons / Q000032:analysis*; D012906:Smoke / Q000032:analysis*; D014026:Nicotiana / Q000737:chemistry*
D006838:Hydrocarbons; D012906:Smoke