In the arson cases, the arsonist often set fire with the help of gasoline, diesel, paint thinners and other flammable liquids.
It is almost impossible that flammable liquid still exist without any combustion after a fire. So it is not suitable that taking
the presence of unburned flammable liquid in the fire scene as the only basis to determine the cause of the fire [1]. Since
smoke in fire scene is generated in the fire, when the flammable liquids attaching to the incompletely burned carbon
particles in the forms of vapor and aerosol, its compositions can reflect the existence of combustible material in different
degrees. Smoke residue in the field is one of the important evidence. Xiong Yukun [2] analyzed the combustion smoke of
93# of gasoline by TLC comparison, Zhang Jian [3] and Zhu Mengru [4] respectively analyzed the combustion smoke of
wooden decoration materials and gasoline by GC/MS. So the accuracy analysis of the smoke extraction from the scene of
the fire is very important.
In this paper, we select three kinds of combustion supporting agents, gasoline, diesel oil and paint thinner as the research
objects, and analyze their characteristic components in their combustion smoke by gas chromatography - mass spectrometry
(GC/MS). By comparing the characteristics peaks, we can conclude the feature and regularity of characteristic components
in combustion smoke of different flammable liquids.
In the arson cases, the arsonist often set fire with the help of gasoline, diesel, paint thinners and other flammable liquids.
It is almost impossible that flammable liquid still exist without any combustion after a fire. So it is not suitable that taking
the presence of unburned flammable liquid in the fire scene as the only basis to determine the cause of the fire [1]. Since
smoke in fire scene is generated in the fire, when the flammable liquids attaching to the incompletely burned carbon
particles in the forms of vapor and aerosol, its compositions can reflect the existence of combustible material in different
degrees. Smoke residue in the field is one of the important evidence. Xiong Yukun [2] analyzed the combustion smoke of
93# of gasoline by TLC comparison, Zhang Jian [3] and Zhu Mengru [4] respectively analyzed the combustion smoke of
wooden decoration materials and gasoline by GC/MS. So the accuracy analysis of the smoke extraction from the scene of
the fire is very important.
In this paper, we select three kinds of combustion supporting agents, gasoline, diesel oil and paint thinner as the research
objects, and analyze their characteristic components in their combustion smoke by gas chromatography - mass spectrometry
(GC/MS). By comparing the characteristics peaks, we can conclude the feature and regularity of characteristic components
in combustion smoke of different flammable liquids.
การแปล กรุณารอสักครู่..