不同提取时间对汽油燃烧残留物鉴定的影响
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摘要
采用气相色谱-质谱联用分析技术,对不同提取时间下汽油燃烧残留物的特征组分进行分析,利用标准质谱检索图对所得结果进行检索。实验结果表明,随着提取时间增加,检测出的芳香烃和稠环芳烃类组分含量减少,多环芳烃类组分含量变化较大,茚满类组分含量较为稳定。实验结果可以为放火案件中汽油的鉴定工作提供一定的参考。
In this paper, the characteristic components of gasoline combustion residues at different extraction times are analyzed by gas chromatography-mass spectrometry(GC-MS), and the results were searched using standard mass spectrum retrieval figure.The results show that with the increase of extraction time, the content of aromatic hydrocarbons and fused aromatic hydrocarbon decreases, the content of polycyclic aromatic hydrocarbon varies greatly, and the content of indene is relatively stable. The experimental results can provide reference for the identification of gasoline in the arson case.
In this paper, the characteristic components of gasoline combustion residues at different extraction times are analyzed by gas chromatography-mass spectrometry(GC-MS), and the results were searched using standard mass spectrum retrieval figure.The results show that with the increase of extraction time, the content of aromatic hydrocarbons and fused aromatic hydrocarbon decreases, the content of polycyclic aromatic hydrocarbon varies greatly, and the content of indene is relatively stable. The experimental results can provide reference for the identification of gasoline in the arson case.
引文
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[4]邓震宇,张得胜,吴宪,等.塑料制品燃烧物对易燃液体放火剂鉴定干扰的研究[J].消防科学与技术,2017,36(4):569-571.
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[6]鲁志宝,梁国福,杨淳旭.易燃液体燃烧烟气在空间不同位置的沉积规律[J].消防科学与技术,2011,30(9):860-862.
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[8]梁国福,田亮,赵力增,等.烟气在不同材料表面沉积规律的研究[J].消防科学与技术,2009,28(5):305-308.
[9]BORUSIEWICZ R,PALUS J Z,ZADORA G.The influence of the type of accelerant,type of burned material,time of burning and availability of air on the possibility of detection of accelerants traces[J].Forensic Science International,2005,160(2):115-126.
[10]梁国福,鲁志宝,王鑫,等.易燃液体在不同环境下成分变化特征的研究[J].消防科学与技术,2011,30(7):563-566.
[11]PRATHER K R,MCGUFFIN V L,SMITH R W.Effect of evaporation and matrix interferences on the association of simulated ignitable liquid residues to the corresponding liquid standard[J].Forensic Science International,2012,222(1-3):242-251.
[12]TURNER D A,GOODPASTER JV.Comparing the effects of weathering and microbial degradation on gasoline using principal components analysis[J].Journal of Forensic Sciences,2012,57(1):64-69.
[13]邢若葵,王松才,戴维列,等.ATD-GC-MS法测定火场样品中痕量汽油燃烧残留物[J].中国司法鉴定,2010,53(6):16-20.
[2]CHOODUM A,DAEID N N.Development and validation of an analytical method for hydrocarbon residues using gas chromatography-mass spectrometry[J].Analytical methods,2011,3(5):1136-1142.
[3]CHOODUM A,DAEID N N.Evaluating the performance of three GC columns commonly used for the analysis of ignitable liquid mixtures encountered in fire debris[J].Analytical methods,2011,3(7):1525-1534.
[4]邓震宇,张得胜,吴宪,等.塑料制品燃烧物对易燃液体放火剂鉴定干扰的研究[J].消防科学与技术,2017,36(4):569-571.
[5]LAULLOO S J,MACLEAN J,RAMTOOLA LATE L,et al.Characterisation of background and pyrolysis products that may interfere with forensic analysis of fire debris in Mauritius[J].Pure and Applied Chemical Sciences,2013,1(2):51-61.
[6]鲁志宝,梁国福,杨淳旭.易燃液体燃烧烟气在空间不同位置的沉积规律[J].消防科学与技术,2011,30(9):860-862.
[7]梁国福,陆阔,黄金亮.易燃液体燃烧烟气沉积物环境时效性研究[J].消防科学与技术,2012,31(5):454-457.
[8]梁国福,田亮,赵力增,等.烟气在不同材料表面沉积规律的研究[J].消防科学与技术,2009,28(5):305-308.
[9]BORUSIEWICZ R,PALUS J Z,ZADORA G.The influence of the type of accelerant,type of burned material,time of burning and availability of air on the possibility of detection of accelerants traces[J].Forensic Science International,2005,160(2):115-126.
[10]梁国福,鲁志宝,王鑫,等.易燃液体在不同环境下成分变化特征的研究[J].消防科学与技术,2011,30(7):563-566.
[11]PRATHER K R,MCGUFFIN V L,SMITH R W.Effect of evaporation and matrix interferences on the association of simulated ignitable liquid residues to the corresponding liquid standard[J].Forensic Science International,2012,222(1-3):242-251.
[12]TURNER D A,GOODPASTER JV.Comparing the effects of weathering and microbial degradation on gasoline using principal components analysis[J].Journal of Forensic Sciences,2012,57(1):64-69.
[13]邢若葵,王松才,戴维列,等.ATD-GC-MS法测定火场样品中痕量汽油燃烧残留物[J].中国司法鉴定,2010,53(6):16-20.