Master Category Fire & Arson
Technical Note: Modifications to Capillary Microextraction in Volatiles (CMV) for the Extraction of Ignitable Liquid Residues (ILRs)
This report summarizes the development and implementation of a novel sampling device (capillary microextraction of volatiles [CMV]) invented in the Almirall research group at Florida International University for ILR extraction as an alternative to current techniques. The versatility of the CMV device has the potential for field sampling applications when coupled with portable analytical systems, and it has been successful in the following studies: sampling volatile compounds generated by explosives, detecting marijuana plants, detecting volatile organic compounds (VOCs) released from amphetamines, analyzing breath samples, sampling organic gunshot residue (OGSR) VOCs, and sampling BTEX (benzene, toluene, ethylbenzene, and the three xylene isomers) compounds in environmental studies. This report is intended for forensic practitioners who want to better understand newly developed technologies and their use and application to forensic casework.
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Using Capillary Microextraction of Volatiles with Cyrofocusing
NIJ and JENSEN HUGHES
“Dr. Gottuk’s work has reduced the number of inaccurate arson determinations based on low burns and holes in the floor. It has even played a role in reversing some wrongful convictions based on the misconception that ignitable liquids burn holes in floors.” ‒John Lentini, CFI, D-ABC Scientific Fire Analysis, LLC