使用手持式X射线荧光光谱仪临场检测爆炸装置塑料碎片
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摘要
目的针对爆炸案件中常见的自制爆炸装置,建立适用于自制爆炸装置关键组件爆炸后残留塑料碎片临场快速检验的方法。方法利用手持式X射线荧光光谱仪对自制爆炸装置中51个常见塑料部件样品进行元素成分测定,采用SPSS软件的最远邻元素聚类分析法结合夹角余弦法对测定数据进行分类。结果手持式X射线荧光光谱仪测定样品元素成分具有简便快速、结果准确、无损样品的特点,采用聚类分析法分析塑料部件样品元素成分,能较好地对样品进行区分。结论该方法适合爆炸案件现场自制爆炸装置塑料碎片元素成分的的快速检验与比较。
Objective To develop a rapid on-site testing method based on elemental analysis for plastic components of improvised explosive devices(IED) involved in explosion cases. Methods The 51 plastic pieces, commonly used with IED,were determined of their elemental compositions through a portable X-ray fluorescent spectrometer, with the obtained data being classified by SPSS clustering analysis of Furthest Neighbor in combination of the approach for included angle's cosine.Results With fast, accurate and non-destructive performance, the portable X-ray fluorescent spectrometer is able to detect the elemental compositions of plastic samples from IED so that the relating samples can be differentiated through the clustering analysis of the obtained data. Conclusion The here-developed method is useful for rapid on-site elemental determination and comparison of plastic evidential samples from IED employed in explosion cases.
Objective To develop a rapid on-site testing method based on elemental analysis for plastic components of improvised explosive devices(IED) involved in explosion cases. Methods The 51 plastic pieces, commonly used with IED,were determined of their elemental compositions through a portable X-ray fluorescent spectrometer, with the obtained data being classified by SPSS clustering analysis of Furthest Neighbor in combination of the approach for included angle's cosine.Results With fast, accurate and non-destructive performance, the portable X-ray fluorescent spectrometer is able to detect the elemental compositions of plastic samples from IED so that the relating samples can be differentiated through the clustering analysis of the obtained data. Conclusion The here-developed method is useful for rapid on-site elemental determination and comparison of plastic evidential samples from IED employed in explosion cases.
引文
[1]王国栋,丁立辉,张宇.爆炸装置碎片分析技术研究[J].湖南警察学院学报,2012, 24(1):101-104.
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[5]王萍,刘玲利,郭洪玲,等.泥土物证的理化综合检验分析[J].刑事技术,2016,41(6):454-458.
[6]姜红,高春芳,务瑞杰,等.X射线荧光光谱法检验塑料饮料瓶的研究[J].上海塑料,2016(4):52-57.
[7]谢龙汉,尚涛,蔡明京. SPSS统计分析与数据挖掘[M].北京:电子工业出版社,2014:231-277.
[8]郭鹏,姜红. X射线荧光光谱法检验烟用内衬纸[J].中华纸业,2015(18):32-35.
[9]夏彬彬,郭洪玲,杨瑞琴,等.应用SPSS软件处理微量物证实验数据[J].中国人民公安大学学报(自然科学版),2009(3):36-40.
[2]张洪国,张彦春,陈立宏.利用爆炸碎片重建爆炸装置的方法研究[J].警察技术,2013(2):57-59.
[3]陈立宏,张洪国,张彦春.常见遥控类爆炸装置关键组成部件及其爆炸碎片研究[J].中国刑警学院学报,2015(4):56-58.
[4]孙光,祁靖.定时类爆炸装置的爆炸实验研究[J].中国刑警学院学报,2008(4):36-38.
[5]王萍,刘玲利,郭洪玲,等.泥土物证的理化综合检验分析[J].刑事技术,2016,41(6):454-458.
[6]姜红,高春芳,务瑞杰,等.X射线荧光光谱法检验塑料饮料瓶的研究[J].上海塑料,2016(4):52-57.
[7]谢龙汉,尚涛,蔡明京. SPSS统计分析与数据挖掘[M].北京:电子工业出版社,2014:231-277.
[8]郭鹏,姜红. X射线荧光光谱法检验烟用内衬纸[J].中华纸业,2015(18):32-35.
[9]夏彬彬,郭洪玲,杨瑞琴,等.应用SPSS软件处理微量物证实验数据[J].中国人民公安大学学报(自然科学版),2009(3):36-40.