The Study on Volatility of Gasoline in Soil Matrix

AbstractIdentification of accelerants in fire debris evidence can be difficulty due to evaporation of the liquid, matrix interferences, and thermal degradation of both the liquid and the matrix. In this work, 1ml gasoline was spiked onto 10g soil matrix (5pieces). The ignitable liquid residues were extracted using 30ml Hexane and analyzed by gas chromatography-mass spectrometry and the interpretation of the instrumental signal. Of the four samples tested, the most compounds in gasoline are not detected from soil matrix after 7days except Naphthalene, Naphthalene-C1/C2/C3 and Benzene, pentamethyl-