色谱－质谱联用分析大气颗粒中多环芳烃

Investigation of Polycyclic Aromatic Hydrocarbon in Airborne Particulates by GC/MS

采用毛细管气相色谱－质谱联用技术（ＧＣ／ＭＳ）．结合溶剂提取和柱色层分离方法，分析了抚顺市采暖期与非采暖期大气颗粒物样品中多环芳烃的化学组成，结果表明，采暧期多环芳烃种类明显多于非采暖期，其中具有致癌活性的物质约１０种，占总组成的２５％。

The polycyclic aromatic hydrocarbon in airbone particulates in heating season and nonheating season in Fushun area have been investigated by using GCIMS coupled with solvent extraction and silicagel column chromatographic separation techniques.The results shown that the kind of polycyclic aromatic hydrocarb on in heating season is more than that in nonheating season obviously,in which the sort of carcinogenic substance is 10,about 25% of total composition.