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为了研究取样时间对硝基油漆稀料目标化合物鉴定的影响,本文模拟火灾现场条件,选取木材作为实验载体,制备了X-1硝基油漆稀料在木材上燃烧残留物,采用气相色谱-质谱(GC-MS)联用技术对其进行了定性、定量分析,初步找出了硝基油漆稀料目标化合物随取样时间的变化规律。研究表明:取样时间对硝基油漆稀料目标化合物鉴定有一定的影响,各组分的相对含量随取样时间的延长而减少;该研究结果可以为火灾现场中可燃液体的分析鉴定提供技术支撑,为相关的研究提供参考资料。
In order to study the effect of sampling time on the identification of target compounds of nitro paint thinner, this paper simulates the fire site conditions and selects wood as the experimental support to prepare combustion residue of X-1 nitro paint thinner on wood. The gas chromatography-mass spectrometry -MS) combined with the technology of its qualitative and quantitative analysis of preliminary found nitrocellulose paint thinner target compound with sampling time changes. The results showed that the sampling time had certain influence on the identification of target compounds of nitro paint thinner, and the relative content of each component decreased with the extension of sampling time. The results of this study could provide technical support for the analysis and identification of combustible liquid in fire scene. Related research provides reference materials.