中"司$%&2020年第3期（总第110期）V定科学小公主读后感
ForensicScience
传统美德小故事
典型高沸点可燃液体火灾物证
的裂解气相色谱-质谱分析
愿望的句子
刘"达&，张健&，李阳&，高端2
(1.中国人民警察大学，河北廊坊065000；2.河南省公安消防总队航空港实验区支队，河南郑州450019)
摘要：目的导热油、机油、润滑油等高沸点可燃液体的燃烧产物与汽油、柴油等助燃剂的燃烧产物在组分和含量上具有很高的相似性'通过对典型高沸点可燃液体进行裂解分析，建立一种适用此类燃烧残留物的火灾物证鉴定方法，避免物证鉴定结果误判的情况发生。方法以美孚603-天然型导热油为例，应用热分析技术优化了裂解条件，并对样品原样和燃烧产物进行了裂解分析(结果导热油原样的裂解产物中，含有较多的C8-C18的单烯怪及其同分异构体，其中直链端烯怪含量最多(在导热油燃烧烟尘的裂解产物中检测到了C10-C17的直链端烯怪和少量对应碳数的同分异构体，且裂解产物中烯怪含量下降明显。结论裂解气相色谱-质谱技术检测精度高，可用于实际火场中高沸点可燃液体火灾物证的检测，有效地丰富和充实了现代火灾物证鉴定技术，使鉴定结论更加准确、可靠(
关键词：可燃液体；物证鉴定；裂解气相色谱-质谱；导热油；高沸点
happiness是什么意思中图分类号：DF794.3 文献标志码：A doi：10.3969/j.issn.1671-2072.2020.03.006
文章编号：1671-2072-(2020)03-0035-06
Analysis of Fire Physical Evidence of Typical High Boiling
Point Flammable Liquids by Pyrolysis Gas
字开头的四字成语Chromatography Mass Spectrometry起起
LIU Jida!,ZHANG Jian1,LI Yang1,GAO Duan2
(1.China People's Police University,Langfang065000,China；2.Zhengzhou Airport Economy Zone Municipal
Fire Brigade,Zhengzhou450019,China)上海景点推荐
Abstract：Objective Combustion products of high boiling point combustible liquids such as heat transfer oil,engine oil, and lubricating oil are highly similar in composition and content to tho of co
mbustion products such as gasoline and diel.The typical high-boiling-point combustible liquids was analyzed by pyrolysis method.A fire evidence identification method applicable to such combustion residues was developed to avoid misjudgment of the result of material evidence identification.Method Taking Mobil603-natural heat transfer oil as an example,thermal analysis technology should be ud to optimize the pyrolysis conditions.The original samples and combustion products were analyzed.Results The original pyrolysis oil-containing pyrolysis products contained more C8to C18monoolefins and isomers,among which the linear end olefin content was the most.C10toC17linear terminal olefins and a small number of isomers with corresponding carbon numbers were detected in the pyrolysis products of thermal oil combustion soot,and the olefin content in the pyrolysis products decread significantly.Conclusion Pyrolysis gas chromatography-mass spectrometry technology has high detection accuracy and can be ud for the detection of high-boiling-point flammable liquid fire evidence in actual fires.It effectively enriches modern fire evidence identification technology and makes the identification conclusions more accurate and reliable.
李敏镐壁纸Keywords：flammable liquid；physical evidence identification；pyrolysis gas chromatography mass spectrometry(Py-GC/ MS)；heat transfer oil；high boiling point
收稿日期#2018-01-30
作者简介：刘纪达(1993—)，男，硕士，主要从事火灾调查、火
灾物证鉴定工作o E-mail:******************。
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