title: Determination of Peroxide Explosive TATP and Related Compounds by Dielectric Barrier Discharge Ionization-Mass Spectrometry (DBDI-MS).
abstract: Dielectric barrier discharge ionization-mass spectrometry (DBDI-MS), which is based on the use of a low temperature helium plasma as ionization source, is used for the determination of trace amounts of triacetone triperoxide (TATP) and its homologue diacetone diperoxide (DADP) from surfaces. TATP is observed as [M+NH4]+adduct, whereas DADP is observed as [M+O+NH4]+. Measurement of DADP with varying deuteration degrees (DADP, DADP-d6, and DADP-d12) indicates that DADP undergoes oxidation when ionized by DBDI. If acetonitrile is used as deposition solvent, TATP tends to show fragmentation and is not only detected as [M+NH4]+but as [M-CH4+NH4]+and [M-C2H4+NH4]+as well. Quantification of TATP solutions from glass surfaces by DBDI-MS, using TATP-3,6,9-13C as internal standard, was done and validated using an LC/APCI-MS method. Achievable limits of detection (LOD) for TATP are equivalent to the deposition of 15 ng TATP and are comparable with other ambient desorption/ionization mass spectrometric techniques like desorption electrospray ionization (DESI).
authors.affiliation: Institute of Inorganic and Analytical Chemistry, University of Münster , Corrensstraße 30, 48149 Münster, Germany.
authors.forename: Sebastian
authors.initials: S
authors.lastname: Hagenhoff
authors.affiliation: Leibniz-Institut für Analytische Wissenschaften - ISAS - e.V. , Bunsen-Kirchhoff-Straße 11, 44139 Dortmund, Germany.
authors.forename: Joachim
authors.identifier: 0000-0003-0419-1898
authors.initials: J
authors.lastname: Franzke
authors.affiliation: Institute of Inorganic and Analytical Chemistry, University of Münster , Corrensstraße 30, 48149 Münster, Germany.
authors.forename: Heiko
authors.identifier: 0000-0002-4074-8545
authors.initials: H
authors.lastname: Hayen