基于GC×GC-TOFMS技术分析枪管、弹壳以及手部的有机射击残留物
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- 英文论文题名：Characterization of volatile organic gunshot residues in fired handgun cartridges, barrel and hand using GC × GC-TOFMS
- 论文作者：杨飞宇 ; 孙奋进 ; 张成功 ; 刘艳芳 ; 刘文斌 ; 杨军
- 英文论文作者：Feiyu yang ; Fenjin Sun ; Chenggong Zhang ; Yanfang Liu ; Wenbin Liu ; Jun Yang ; Shanghai Research Institute of Criminal Science and Technology ; Shanghai Key Laboratory of Crime Scene Evidence ; Shanghai Plice College ; Shanghai Institute of Organic Chemisty ; Chinese Academy of Sciences
- 年：2016
- 作者机构：上海市刑事科学技术研究院上海市物证鉴定中心;上海市公安高等专科学校;中国科学院上海有机化学研究所;
- 论文关键词：射击残留物的有机组分 ; 全二维气相色谱-飞行时间质谱
- 英文论文关键词：Organic gunshot residues ; GC × GC-TOFMS
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第三十四分会：公共安全化学
- 语种：中文
- 分类号：O657.63;D918.91
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第三十四分会 ; 公共安全化学
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：3
- 文件大小：436k
- 原文格式：D
- 会议级别：全国
摘要
本文建立了全二维气相色谱-飞行时间质谱分析枪管、弹壳和手部射击残留物中的有机组分分析方法,得到了射击残留物中有机组分分布的二维点阵图。结合谱库检索及文献报道,对射击残留物中有机组分进行了准确定性。其中,该研究鉴定出枪管中的55种射击残留物有机组分,弹壳中的34种射击残留物有机组分,手部的37种射击残留物有机组分,并分析了每种有机残留物的来源。为射击残留物中的有机组分的准确定性提供了新的技术手段,并为确定犯罪嫌疑人、炸药种类和事故发生时间提供了技术支持。与普通一维色谱相比,全二维气相色谱在射击残留物中的有机组分分析上体现了很大优势。
An analytical method for separating and identifying volatile organic gunshot residues using comprehensive two-dimensional gas chromatography(GC×GC) coupled to time of flight mass spectrometry method(TOFMS). Volatile organic gunshot residues on the hand and in the barrel and cartridges after shooting were detected and identified by MS database comparison and literature reports. Fifty-seven, thirty four and thirty seven compounds were identified in the barrel, in the cartridges and on the hand, respectively, and it was observed that the final compositional characteristics of each residue were strongly dependent on its source. The method was successfully applied to identify the volatile organic gunshot residues. The method also provided technical for detecting residual materials released during firearm discharges to identify a person involved in a gunfire event, estimate a shooting distance, determine the ammunition type or to estimate the time elapsed since discharge in the forensic investigation of criminal cases. Compared with the conventional method, gas chromatography coupled to mass spectrometry(GC×MS), the GC × GC-TOFMS method illustrated the obvious advantages for volatile organic gunshot residues.
An analytical method for separating and identifying volatile organic gunshot residues using comprehensive two-dimensional gas chromatography(GC×GC) coupled to time of flight mass spectrometry method(TOFMS). Volatile organic gunshot residues on the hand and in the barrel and cartridges after shooting were detected and identified by MS database comparison and literature reports. Fifty-seven, thirty four and thirty seven compounds were identified in the barrel, in the cartridges and on the hand, respectively, and it was observed that the final compositional characteristics of each residue were strongly dependent on its source. The method was successfully applied to identify the volatile organic gunshot residues. The method also provided technical for detecting residual materials released during firearm discharges to identify a person involved in a gunfire event, estimate a shooting distance, determine the ammunition type or to estimate the time elapsed since discharge in the forensic investigation of criminal cases. Compared with the conventional method, gas chromatography coupled to mass spectrometry(GC×MS), the GC × GC-TOFMS method illustrated the obvious advantages for volatile organic gunshot residues.
引文
[1]Moxnes JF,Jensen TL,Smestad E,Unneberg E,Dullum O(2013)Lead free ammunition without toxic propellant gases.Propellants,Explos,Pyrotech 38:255.
[2]Wallace JS(2008)Chemical analysis of firearms,ammunition,and gunshot residue.CRC Press,Boca Rato.
[3]Romolo FS,Margot P,Identification of gunshot residue:a critical review,Forensic Sci.Int.119(2001)195.
[4]Gallidabino M,Romolo F S,Weyermann C.Characterization of volatile organic gunshot residues in fired handgun cartridges by headspace sorptive extraction.Analytical and bioanalytical chemistry,2015,407(23):7123.
[5]Chang KH,Jayaprakash PT,Yew CH,Abdullah AFL(2013)Gunshot residue analysis and its evidential values:a review.Aust J Forensic Sci 45(1):3.
[6]Dalby O,Butler D,Birkett JW(2010)Analysis of gunshot residue and associated materials—a review.J Forensic Sci 55(4):924.
[7]Ase P,Eisenberg W,Gordon S,Taylor K,Snelson A(1985)Propellant combustion product analyses on an M16 rifle and a 105mm caliber gun.J Environ Sci Health 20(3):337.
[8]Andrasko J,Norberg T,Stahling S(1998)Time since discharge of shotguns.J Forensic Sci43(5):1005.
[9]Weyermann C,Belaud V,Riva F,Romolo FS(2009)Analysis of organic volatile residues in9mm spent cartridges.Forensic Sci Int 186:29.
[2]Wallace JS(2008)Chemical analysis of firearms,ammunition,and gunshot residue.CRC Press,Boca Rato.
[3]Romolo FS,Margot P,Identification of gunshot residue:a critical review,Forensic Sci.Int.119(2001)195.
[4]Gallidabino M,Romolo F S,Weyermann C.Characterization of volatile organic gunshot residues in fired handgun cartridges by headspace sorptive extraction.Analytical and bioanalytical chemistry,2015,407(23):7123.
[5]Chang KH,Jayaprakash PT,Yew CH,Abdullah AFL(2013)Gunshot residue analysis and its evidential values:a review.Aust J Forensic Sci 45(1):3.
[6]Dalby O,Butler D,Birkett JW(2010)Analysis of gunshot residue and associated materials—a review.J Forensic Sci 55(4):924.
[7]Ase P,Eisenberg W,Gordon S,Taylor K,Snelson A(1985)Propellant combustion product analyses on an M16 rifle and a 105mm caliber gun.J Environ Sci Health 20(3):337.
[8]Andrasko J,Norberg T,Stahling S(1998)Time since discharge of shotguns.J Forensic Sci43(5):1005.
[9]Weyermann C,Belaud V,Riva F,Romolo FS(2009)Analysis of organic volatile residues in9mm spent cartridges.Forensic Sci Int 186:29.