气相色谱/质谱/质谱法分析石油基引燃物

Analysis of Gasoline,Kerosene and Diesel as Petroleum Fire Accelerants with GC/MS/MS Method

应用 Varian 380 0 GC/ Saturn 2 0 0 0 MS气相色谱 /质谱联用分析仪 (简称 GC/ MS/ MS)对以汽油、煤油和柴油为引燃物 ,燃烧聚丙稀化纤地毯和土壤时的模拟现场物品进行了引燃物的检出。发现采用 GC/ MS/ MS方法比用 GC/MS方法可以较彻底地排除由于柱流失、地毯燃物分解产物、土壤背景产物和地毯增塑剂等引起的干扰 ,而且可以提高检测灵敏度。详细考察了以不同质荷比的离子作母离子时对 GC/ MS/ MS分析结果的影响。质荷比为 10

With varian 3800 gas chromatograph/saturn 2000 mass spectrometer,samples of burned polypropylene carpet and soil respectively absorabed with gasoline,kerosene and diesel were analyzed by GC/MS/MS method at the parent ions m/z 91,106,120 and 142.It is proued that the 106m/z ion was the optimal parent ion and the interference of pyrolysis products from the burned samples was overcome.