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通过三维荧光光谱图中主要荧光峰的位置和其半峰宽、荧光发光区域分布、主峰与次峰的荧光强度之比等三维荧光特征参数,分析了汽油和其燃烧残留物的荧光特性,并研究了载体干扰物、萃取剂等因素对荧光分析结果的影响,为分析火场残留物中是否有汽油成分提供新的鉴定依据,并为火灾原因的调查和最终认定提供更可靠的参考依据。
The fluorescence characteristics of gasoline and its combustion residue were analyzed by the three-dimensional fluorescence parameters such as the position of the main fluorescence peak in the three-dimensional fluorescence spectrum and its half-width, the distribution of the fluorescence emission region, the fluorescence intensity ratio of the main peak and the second peak The effects of carrier interferences, extractants and other factors on the results of fluorescence analysis were studied. It provided a new identification basis for analyzing the presence or absence of gasoline components in fire residues and provided a more reliable reference for the investigation and final determination of fire causes.