摘要
为分析特征温度对放火火灾中汽油检测的影响,利用气相色谱质谱联用技术,以汽油燃烧残留物为研究对象,通过热分析技术选定特征温度点,并对不同特征温度下样品组分的变化情况进行GC-MS分析。研究结果表明,温度的升高可以改变汽油的理化性质,加快汽油组分的流失,对汽油燃烧产物的检出效果造成影响。研究可为实际工作提供更准确的鉴定意见。
In order to analyze the influence of characteristic tem-perature on gasoline detection in arson fire,this paper uses the gas chromatography and MS combined technology to study the gasoline combustion residue,selects the characteristic tempera-ture points through the thermal analysis technology,and con-ducts GC-MS analysis on the changes of sample components at different characteristic temperatures.The results show that the increase of temperature can change the physical and chemical properties of gasoline,accelerate the loss of gasoline compo-nents,affect the detection effect of gasoline combustion prod-ucts.The study can provide more accurate identification opin-ions for practical work.
作者
申羽彤
刘玲
Shen Yutong;Liu Ling(Daqing Fire and Rescue Division,Heilongjiang Daqing 163000,China;The Research Center for New Crime Prevention and Control,China People's Police University,Hebei Langfang 065000,China)
出处
《消防科学与技术》
CAS
北大核心
2022年第12期1758-1762,共5页
Fire Science and Technology
关键词
特征温度
汽油燃烧残留物
GC-MS
归一化法
火灾调查
放火
characteristic temperature
gasoline combustion res-idues
GC-MS
normalization method
fire investigation
arson
