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,用气相色谱-质谱法分析卷烟烟气总粒相物中的酸,酸测定结果的相对准偏差小于1%,平均回收率为99。