Gas chromatography-ion mobility spectrum (GC-IMS) is used to analyze and compare the differences in aroma among different tobacco samples. The aroma substances in tobacco samples in Jilin Changchun are the richest, while those in Guangdong Nanxiong are the lowest. The concentrations of aroma substances such as decanal, 1-hydroxy-2-propanone, and 2-methylbutanol were the highest in Guangdong Nanxiong of the three. The concentration of 1-hexanol, cyclohexanone, pentanoic acid, and other aroma substances in Fujian Nanping was high. The concentration of 2-acetylfuran, 2-octanol, isopentanol, 3-methylvaleric acid, phenylacetic acid, and other aroma substances in Changchun area of Jilin Province was low. Through principal component analysis and similarity research, both tobaccos can be distinguished by their production areas and grades from the same.

中文翻译：

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基于气相色谱-离子迁移谱法的不同产地烟草粉香气成分

气相色谱-离子迁移谱（GC-IMS）用于分析和比较不同烟草样品之间的香气差异。吉林省长春市烟叶样品中的香气物质含量最高，而广东南雄市烟叶中的香气物质含量最低。十种香精，1-羟基-2-丙酮和2-甲基丁醇等香气物质的浓度在这三者的广东南雄中最高。福建南平的1-己醇，环己酮，戊酸等香气物质含量较高。吉林省长春地区的2-乙酰基呋喃，2-辛醇，异戊醇，3-甲基戊酸，苯乙酸和其他香气物质的浓度较低。通过主成分分析和相似性研究，可以根据产地和等级区分两种烟草。