Application of a kinetic model to predict extracted ion profiles for the identification of evaporated ignitable liquids

Interpol review of fire debris analysis and fire investigation 2019–2022

“…Capistran and Capistran et al built on the research completed by Eklund and used kinetic modeling to predict evaporation rate constants of compounds found in isoparaffinic products, naphthenic-paraffinic products, and aromatic products as a function of the GC retention index [ 64 , 65 ]. Using experimentally evaporated liquids as a basis, the model was able to successfully predict extracted ion profiles and total ion chromatograms corresponding to the various compound classes for each liquid.…”

Rapid GC–MS as a screening tool for forensic fire debris analysis

“…For all samples, a 1 µL injection was used, with a split ratio of 20:1 and a pressure of 48.745 kPa (7.0699 psi). The temperature program was based on previous methods for fire debris analysis [14,15]: initial temperature of 40 C, hold for 3 min, ramp 10 C/min to 280 C, hold for 4 min (total run time of 31 min). A 5 min solvent delay was utilized.…”