主管：中华人民共和国应急管理部
主办：应急管理部天津消防研究所
ISSN 1009-0029  CN 12-1311/TU
消防科学与技术

消防科学与技术 ›› 2020, Vol. 39 ›› Issue (1): 21-24.

• • 上一篇    下一篇

不同保存方式对火场土壤内助燃剂的影响

方强，刘玲   

  1. 中国人民警察大学，河北廊坊065000
  • 收稿日期:2019-09-22 出版日期:2020-01-15 发布日期:2020-01-15
  • 通讯作者: 刘玲(1978-)，女，中国人民警察大学火灾物证鉴定中心鉴定人员
  • 作者简介:方强(1995-)，男，安徽合肥人，中国人民警察大学研究生一队硕士研究生，主要从事助燃剂鉴定和材料热解动力学研究，河北省廊坊市安次区西昌路220号，065000
  • 基金资助:
    工业和信息化部国家创新专项（KY10100170137）

Effect of preservation mode on combustion promoter in soil matrix of fire scene

FANG Qiang, LIU Ling   

  1. China People's Police University, Hebei Langfang 065000, China）

  • Received:2019-09-22 Online:2020-01-15 Published:2020-01-15

摘要： 为提高火场检材检出率，研究了在微生物降解效应的影响下，冷冻处理和三氯生溶剂浸泡两种保存方式对火场土壤检材内汽油原样的保存能力，对比溶剂抑菌和冷冻抑菌对微生物降解效应的抑制能力。采用气相色谱-质谱联用对样品进行分析，依据皮尔逊相关系数对保存后的样品与汽油原样进行相关性分析，并研究样品内汽油特征组分的检出效果。结果表明：冷冻处理后的样品与汽油原样极性相关，且特征组分检出效果较好，研究结果可应用于日常火灾物证鉴定工作中。

关键词: 火灾调查, 汽油, 冷冻, 皮尔逊相关系数

Abstract: In order to improve the detection rate of fire evidence, the preservation of the original gasoline in the soil samples of the fire scene under the influence of microbial degradation effects by freezing treatment and triclosan solvent immersion were researched, and comparison of the inhibitory ability of solvent and freeze inhibition on microbial degradation were carried out. The analysis of samples by GC- MS was carried out and the Pearson correlation coefficient was used to analyze the correlation between the preserved sample and the original gasoline, and the detectioneffect of the gasoline characteristic components in the sample was
studied. The results showed that the sample after freezing treatment is related to the polarity of the original gasoline, and the detection of the characteristic components is better. The research results can be applied to the identification of daily fire investigation work.

Key words: fire investigation, gasoline, freezing, Pearson correlation coefficient