烟叶类型、部位及生态区对总粒相物中主要有机酸释放量的影响

采用溶剂萃取-硅烷化衍生-GC-MS/MS法测定了卷烟主流烟气总粒相物中42种挥发半挥发有机酸（包括13种短链脂肪酸、7种中链脂肪酸、10种长链脂肪酸、12种其他有机酸），按照单位燃烧烟丝量计算释放量。结果表明:①香料烟短链和中链脂肪酸释放量最高，烤烟中长链脂肪酸释放量最高，白肋烟各种脂肪酸释放量均不突出；②挥发半挥发有机酸释放量总体上随部位降低呈降低趋势；③按八大典型生态区划分，武夷生态区烟叶大部分挥发半挥发有机酸单位燃烧烟丝量释放量最高。 

Effects of tobacco types,positions and ecological regions on release of main organic acids in total particulate matter

A solvent extraction-silanization derivatization-GC-MS/MS method was developed for the determination of 42 volatile and semi-volatile organic acids yield in total particulate matter of cigarette mainstream smoke,while the yield was calculated as per burn tobacco weight.And it contained 13 short-chain fatty acids,7 middle-chain fatty acids,10 long-chain fatty acids and 12 other organic acids.The results:① Oriental tobacco produced the most of short-and middle-chain fatty acid;flue-cured tobacco produced the most of long-chain fatty acid;organic acids yield for burley tobacco was not outstanding;② The yield of volatile and semi-volatile organic acids decreased with leaf position changing from the upper to the bottom;③ Volatile and semi-volatile organic acid yield for Wuyi ecology region tobacco was the highest among eight typical ecology region tobacco.