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裂解气相色谱-质谱分析火场残留物中助燃剂

Translated title of the contribution: Analysis of accelerant in fire debris by pyrolysis gas chromatography-mass spectrometry
  • Jian Zhang
  • , Jida Liu*
  • *Corresponding author for this work
  • The Chinese People's Police University
  • Daqing

Research output: Contribution to journalArticlepeer-review

Abstract

通过对火灾现场助燃剂及其燃烧残留物进行分析,开展了基于裂解气相色谱-质谱法(PyGC-MS)的火场助燃剂分析方法。选取了汽油和柴油2种助燃剂以及棉布和聚对苯二甲酸乙二醇酯(PET)塑料2类载体,制备了助燃剂与载体的混合燃烧残留物。利用热分析技术确定样品的特征性温度,并对分析条件进行优化与选择。通过闪蒸分析和裂解分析的分步裂解方法,对样品进行了PyGC-MS分析。实验结果表明,PET载体原样燃烧残留物的裂解产物共有35个组分,而PET载体与汽油混合燃烧残留物和PET载体与柴油混合燃烧残留物的裂解产物只有25个组分,且各裂解产物的种类和含量均不相同。该法可对同一载体的自身燃烧残留物和与助燃剂混合燃烧残留物进行区分,适用于火灾残留物中助燃剂的分析,可对火场中是否存在助燃剂进行判别,为火灾性质的判断和火灾调查工作提供科学依据.

Translated title of the contributionAnalysis of accelerant in fire debris by pyrolysis gas chromatography-mass spectrometry
Original languageChinese (Traditional)
Pages (from-to)426-431
Number of pages6
JournalChinese Journal of Chromatography (Se Pu)
Volume37
Issue number4
DOIs
StatePublished - 1 Apr 2019
Externally publishedYes

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