Two-Dimensional Gas Chromatography-Time of Flight Mass Spectrometry Analysis of Tobacco Flavor

For those tobacco flavors who have little peaks or obvious lapped peaks on one-dimensional gas chromatography(GC),two-dimensional gas chromatography time of flight mass spectrometry(GC × GC-TOFMS)was adopted to optimize,analyse and compare with GC analysis results.The co-relationship between taste and chemical compounds obtained by different analysis results was compared.The results showed that GC × GC-TOFMS had greater separate ability,the compounds qualified were much more than one-dimensional GC and more accordingly to taste.This analysis method can fully qualify chemical compounds in tobacco flavors,accurately realize co-relationship between compounds and functions and increase scientific nature and efficiency of flavor blending.