Journal
JOURNAL OF FORENSIC SCIENCES
Volume 56, Issue 5, Pages 1143-1149Publisher
WILEY
DOI: 10.1111/j.1556-4029.2011.01806.x
Keywords
forensic science; analytical chemistry; triacetone triperoxide; diacetone diperoxide; gas chromatography mass spectrometry; improvised explosive
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The organic peroxide explosive triacetone triperoxide (TATP) is regularly encountered by law enforcement agents in various stages of its production. This study utilizes solid-phase microextraction (SPME) and gas chromatography/mass spectrometry (GC/MS) to examine sulfuric acid-, hydrochloric acid-, and nitric acid-catalyzed TATP syntheses during the initial 24 h of these reactions at low temperatures (5-9 degrees C). Additionally, aging of the reaction mixtures was examined at both low and ambient temperatures (19-21 degrees C) for a further 9 days. For each experiment, TATP could be readily identified in the headspace above the reaction mixture 1 h subsequent to the combination of reagents; at 24 h, TATP and diacetone diperoxide (DADP) were prominent. TATP degraded more rapidly than DADP. Additionally, chlorinated acetones chloroacetone and 1,1,-dichloroacetone were identified in the headspace above the hydrochloric acid-catalyzed TATP reaction mixture. These were not present when the catalyst was sulfuric acid or nitric acid.
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