纵火现场中汽油、煤油和柴油残留物的ATD/GC/MS法检测  

Analysis of Residues of Gasoline, Kerosene and Dierel Oil Collected at Arson Scenes by ATD/GC/MS

作　　者：邢若葵[1] 王松才[1] 戴维列[1] 刁中文[1] 黎乾[1] 

机构地区：[1]广州市刑事科学技术研究所,广东广州510030

出　　处：《中国司法鉴定》2008年第4期22-25,共4页Chinese Journal of Forensic Sciences

基　　金：广州市科技攻关项目(2007Z1-E0062)

摘　　要：目的为火场中汽油、煤油和柴油残留物的检测建立一种简便、高灵敏度的ATD/GC/MS检验方法。方法采用TenaxTA吸附管吸附富集检材中的汽油、煤油和柴油成分,然后用美国PE公司的ATD/GC/MS仪器进行全自动的解吸和分析检测。结果检材中汽油、煤油和柴油的检测极限分别达0.05、0.2、0.2pL/mL。结论该方法具解吸和分析检测过程自动化,操作简便快捷,检测灵敏度高,杂质干扰少等特点,可用于实际火场中汽油、煤油和柴油残留物的检测。Objective To set up a simple and sensitive ATD/ GC/MS method for analysis of residues of gasoline, kerosene and diesel oil collected at fire scenes. Method Gasoline. kerosene and diesel oil from fire debris was absorbed and enriched by Tenax TA kit, and then automatically thermal desorbed and analyzed by ATD/GC/MS Results The minimum detection limit of gasoline, kerosene and diesel oil samples are 0.05, 0.2 and 0.2pl/ ml, respectively. Conclusion The method has the advantage of automatic desorbing and analyzing, simple and quick operation. high sensitivity and lower interference of impurities. It can be used for analysis of residues of gasoline, kerosene and diesel oil collected at fire scenes.

关 键 词：自动热脱附(ATD) Tenax TA吸附管 CC/MS 汽油 煤油 柴油 

分 类 号：TE626.21[石油与天然气工程—油气加工工程] O657.3[理学—分析化学]