The content of free acetic acid in cigarette smoke condensates was determined by GC-MS with isopropyl alcohol as the solvent and nonanol as the internal standard.

以异丙醇为溶剂,壬醇为内标,采用相色-法分析卷粒相物中的游离乙酸,乙酸测定结果的相对标准偏差小于1%,平均回收率为99。