加热不燃烧卷烟与传统卷烟热裂解指纹图谱分析评价

Analysis and evaluation of heat-not-burn cigarette and traditional cigarette pyrolysis products by fingerprint

建立了获取烟草材料指纹图谱的裂解-气相色谱/质谱(Py-GC/MS)方法,对国内外6个品牌加热不燃烧卷烟(HNB)和国内3个品牌传统卷烟(TC)的烟草材料成分进行了测定,基于烟草材料的Py-GC/MS指纹图谱数据进行相似度计算,并采用聚类分析法对烟草材料的组成差异进行分析评价。结果表明,在Py-GC/MS法所获取的HNB、TC指纹图谱中共筛选出32个共有峰,其中HNB相对TC含量较高的化合物有乙酸甘油酯和甘油,而TC含量较高的化合物主要为糖类物质的裂解产物;HNB与TC裂解产物指纹图谱的相似度较低(0.304~0.703),而HNB之间、TC之间的指纹图谱相似度高,分别为0.878~0.999和0.986~0.998;通过聚类模式识别,TC和HNB烟草材料完全区分为两类,HNB烟草材料根据制备工艺的明显差异又分为两类。该研究结果可为不同烟草材料的区分提供判别依据。

A pyrolysis-gas chromatography/mass spectrometry(Py-GC/MS)method was developed to obtain the fingerprint of tobacco materials,the tobacco material ingredients of 6 domestic and foreign brands of heat-not-burn cigarettes and 3 domestic brands of tradi⁃tional cigarettes were determined.The similarity value of Py-GC/MS fingerprint data of tobacco materials was calculated,and the clus⁃ter analysis method was used to evaluate the composition differences of tobacco materials.The results showed that a total of 32 common peaks were screened from HNB and TC fingerprints obtained by Py-GC/MS.Among which,the compounds with higher content of HNB than that of TC were glyceryl acetate and glycerol,while the compounds with higher content of TC were mainly the pyrolysis products of carbohydrate;The pyrolysis product fingerprints of HNB and TC had a low similarity value(0.304~0.703),while the fingerprints between HNB and between TC had a high similarity value,which were 0.878~0.999 and 0.986~0.998,respectively;Through cluster pattern recognition,TC and HNB tobacco materials were completely divided into two categories,and HNB tobacco materials were fur⁃ther divided into two categories according to obvious differences in preparation process.This study results can provide a basis for the discrimination of different tobacco materials.