Fast detection of triacetone triperoxide (TATP) from headspace using planar solid-phase microextraction (PSPME) coupled to an IMS detector |
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| Authors: | Wen?Fan Mimy?Young Jon?Canino James?Smith Jimmie?Oxley Email author" target="_blank">Jose?R?AlmirallEmail author |
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| Institution: | (1) Department of Chemistry and Biochemistry and International Forensic Research Institute, Florida International University, 11200 SW 8th St. OE 116A, Miami, FL 33199, USA;(2) Department of Chemistry and DHS Center of Excellence on Explosives Detection, Mitigation and Response, University of Rhode Island, Kingston, RI 02881, USA; |
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| Abstract: | Triacetone triperoxide (TATP) is a high explosive synthesized from easily available reactants making it accessible for illicit
uses. In this study, fast detection of TATP is achieved using a novel planar solid-phase microextraction (PSPME) as a preconcentration
and sampling device for headspace analysis offering improved sensitivity and reduced sampling time over the conventional fiber-based
solid-phase microextraction (SPME) when followed by ion mobility spectrometer (IMS) detection. Quantitation and comparison
of the retention capabilities of PSPME as compared to the commercially available SPME were determined using TATP standards
and analyzed using gas chromatography–mass spectrometry for SPME analysis and a commercial IMS with no instrumental modification
for PSPME. Static and dynamic headspace extractions were used and compared for PSPME extractions, in which low milligram quantities
of TATP were detected within 30 s of static mode sampling and less than 5 s in the dynamic mode sampling for PSPME–IMS. |
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