A method is described by GC/MS combining SPME for analysing degradation products in water containing UDMH in different time.The optimization SPME condition was also obtained.

• 本文使用SPME-GC/MS技术分析不同时间水中偏二甲肼降解产物浓度变化规律,并得到SPME对偏二甲肼降解产物的最佳萃取条件。