Determining residues flammable liquid fire in debris by GC-FID
DOI:
https://doi.org/10.5377/rct.v0i10.1064Keywords:
Flammable liquids, gas chromatography, detector FID, passive adsorption, Control Samples, Matrix, ChromatogramAbstract
We present a method for determining traces of flammable liquids in fire debris, such as gasoline, diesel and other compounds accelerators, by gas chromatography with flame ionization detector (FID) capable of separating and identifying in quantities of parts per million with good resolution and accuracy. Control samples were prepared to verify the extraction process by passive adsorption technique with strips of activated coal and subsequent desorption with carbon disulfide (CS2) using a capillary column 30 m DB-1, with a chromatographic run of 31 minutes. Was obtained a correct separation able to differentiate between compounds more volatile than those with high boiling point. Presents the chromatogram obtained from blank controls, and disulfide accelerators, all possible matrix resembling prepared to study a possible fire, such as waste paper, cloth, cotton, among others.
DOI: http://dx.doi.org/10.5377/rct.v0i10.1064
Revista Ciencia y Tecnología, No. 10, junio 2012 pp 81-99
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