| 查正根,宗若雯,李松阳,王荣辉,曾文茹.SPME/GC-MS在对火场残留物分析中的应用及其数据分析[J].火灾科学,2007,16(2):115-121. |
| SPME/GC-MS在对火场残留物分析中的应用及其数据分析 |
| Application of SPME/GC-MS in the analysis of fire debris and its data interpretation |
| 投稿时间：2007-01-04 修订日期：2007-03-15 |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| DOI：10.3969/j.issn.1004-5309.年.期.顺序 |
| 基金项目:中国科学技术大学火灾科学国家重点实验室开放课题(HZ2005-KF10);国家自然科学基金(10605023) |
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| 中文关键词: 固相微萃取 气相色谱-质谱 火灾残留物 汽油 相似度分析 |
| 英文关键词:Solid Phase Micro-extraction(SPME) GC-MS fire debris gasoline similarity analysis |
| 摘要点击次数: 461 |
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| 中文摘要: |
| 本文利用固相微萃取(SPME)的高富集性和气相色谱-质谱(GC-MS)的精确性,采用SPME/GC-MS方法对模拟纵火现场中的常见火灾残留物进行分析,并通过比较其特性化合物,很大程度上提高了判断的准确性。利用二甲基苯、三甲基苯、四甲基苯及甲基萘类化合物各自异构体的特征比值,可以很好地减少分析过程中背景干扰。通过向量夹角法进行相似度分析可以帮助判断干扰物的影响。 |
| 英文摘要: |
| For the high enrichment of Solid Phase Micro-extraction(SPME) and the high precision of Gas Chromatography/Mass Spectrometry,SPME/GC-MS was used in the analysis of some common fire debris that was taken from a simulated arson scene.The presence of gasoline can be identified accurately by comparing some target compounds.With the help of the diagnostic ratio of the area of 2-Methylbenzene,3-Methylbenzene,4-Methylbenzene,Methylnaphthalene and their relevant isomers,the interference of background in analysis can be reduced.The Similarity Analysis by vectorial angel method showed the effect of interference matrices. |
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