中山大学学报自然科学版 ›› 2012, Vol. 51 ›› Issue (1): 59-62.

• 研究论文 • 上一篇    下一篇

GC-MS定量分析火场残留物中汽油组成

沈 浩,李盈宇,梁 栋   

  1. (中山大学工学院//广东省消防科学与技术重点实验室,广东 广州 510006)
  • 收稿日期:2011-08-03 修回日期:1900-01-01 出版日期:2012-01-25 发布日期:2012-01-25
  • 通讯作者: 梁栋

GC-MS Quantitative Analysis of GasoLine Trace in Fire Debris

SHEN Hao, LI Yingyu, LIANG Dong   

  1. ( School of Engineering//Guangdong Provincial Key Laboratory of Fire Science and Technology, Sun Yatsen University, Guangzhou 510006, China)
  • Received:2011-08-03 Revised:1900-01-01 Online:2012-01-25 Published:2012-01-25

摘要: 建立了以正己烷为溶剂、超声波震荡提取、气相色谱质谱联用仪测定火场残留汽油中8种目标化合物的方法。各组分的浓度在0.1~50μg/mL范围内具有良好的线性,线性相关系数r2大于0.995,测定结果的标准偏差(n=7)小于5%。实际样品的测量结果表明,未烧汽油样品中甲苯含量高于其它7种目标化合物,在燃烧残留地毯中,仅可检验出3种目标化合物,而燃烧残留水泥块中可检出8种目标化合物。

关键词: GC-MS, 汽油, 火场残留物, 定量分析

Abstract: A method of gas chromatographymass (GC-MS) spectrometry was developed for the quantitative analysis of gasoline trace in fire debris. Eight compounds, such as aromatic hydrocarbons, nalkane and naphthalene, were selected as target compounds for quantitative analysis. The results showed that the linear range of eight compounds was 0.1~50 μg/mL with correlation coefficients r2 more than 0.995.The relative standard deviation (n=7) was less than 5%. Fire debris analysis indicated toluene showed the highest content in fresh gasoline. Three compounds were detected in carpet residues after burning, while eight compounds were detected in cement bricks.

Key words: GC-MS, gasoline, fire debris, quantitative analysis

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