Journal
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
Volume 403, Issue 2, Pages 401-408Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s00216-012-5878-x
Keywords
Ion mobility spectrometer (IMS); Planar solid-phase microextraction (PSPME); Solid-phase microextraction (SPME); Triacetone triperoxide (TATP)
Funding
- National Institute of Justice, Office of Justice Programs, U.S. Department of Justice [2006-DN-BX-K027]
- University of Rhode Island DHS CoE
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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. similar to 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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