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.

以异丙溶剂,壬标,采用气相色谱-质谱法分析卷烟烟气总粒相物中的游离,测定结果的相对标准偏差小于1%,平均回收率99。