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采用半制备型高效液相色谱结合气相色谱-质谱联用法对卷烟烟气中性香味成分了进行分析。用剑桥滤片捕集卷烟主流烟气粒相物,用同时蒸馏萃取法提取并分离得到中性香味成分。通过对半制备高效液相色谱分离条件和制备馏分体积进行优化,使复杂的烟气中性成分得到预分离,制备出组成相对简单的12个馏分,然后用气相色谱-质谱联用法分析鉴定其中香味成分。结果表明:从各馏分的总离子流色谱图中共鉴定出319种中性成分,其中烃类48种,醛类29种,酮类134种,酯类21种,醇类28种,含氧杂环类18种,含氮化合物32种,酚类7种,醚类2种。方法适合于复杂的烟气中性成分的分析研究。
Semi-preparative HPLC and gas chromatography-mass spectrometry were used to analyze the components of neutral flavor of cigarette smoke. Trap cigarettes were collected with Cambridge filter mainstream particulate matter, with simultaneous distillation extraction and separation of neutral flavor components. Through the optimization of semi-preparative HPLC separation conditions and the preparation of fraction volume, the complex flue gas neutral components were pre-separated to prepare 12 fractions with relatively simple composition and identified by gas chromatography-mass spectrometry Fragrance composition. The results showed that 319 kinds of neutral components were identified from the total ion chromatogram of the fractions, among which 48 were hydrocarbons, 29 were aldehydes, 134 were ketones, 21 were esters, 28 were alcohols, 18 kinds of rings, 32 kinds of nitrogen compounds, 7 kinds of phenols and 2 kinds of ethers. The method is suitable for the analysis of complicated components of flue gas.