提取时间对硝基油漆稀料燃烧产物鉴定的影响

油漆稀料是一种常见的助燃剂,提取时间对其燃烧产物的鉴定会有一定的影响。选取了纯毛织品作为实验载体,以硝基油漆稀料为研究对象,对燃烧残留物及燃烧烟尘进行了系统的GC-MS分析,找出了纯样和加载油漆稀料后燃烧产物主要成分的变化规律,对样品中目标化合物的相对峰面积随燃烧产物提取时间的变化曲线进行了非线性数学分析,初步找出了样品燃烧产物的相对峰面积随硝基油漆稀料燃烧产物提取时间变化的规律,为合理选择物证的提取时间提出了建议。

A Study of the Influence of the Extraction Time on the Determination of Combustion Products of the Nitro Paint Thinners

Paint thinner is a common combustion improver. The extraction time has an effect on the determination of the combustion products of paint thinners. In this paper,jaeger was chosen as an experimental carrier. The combustion residue and smoke of the nitro paint thinners were systematically analyzed by GC- MS method. The transformation rules of the combustion products of pure jaegers and jaegers with the nitro paint thinners were found. The relative peak area of target products changing with extraction time curve was analyzed by nonlinear mathematical analysis method. The transformation laws of the relative peak area of sample combustion products changing with extraction time of the nitro paint thinners＇ combustion residues were found. The suggestion is given about the reasonable selection of extraction time of physical evidence.