Dresden 2011 – wissenschaftliches Programm
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MS: Fachverband Massenspektrometrie
MS 9: Ion Trap and FT-ICR-MS, Molecules, Clusters and Reactions
MS 9.5: Vortrag
Freitag, 18. März 2011, 11:45–12:00, GÖR 229
On-line detection of illicit substances in liquid phase with proton-transfer-reaction mass spectrometry (PTR-MS) — •Simone Jürschik1,3, Philipp Sulzer2, Bishu Argawal1, Fredrik Petersson1,3, Stefan Haidacher2, Alfons Jordan2, Ralf Schottkowsky2, Eugen Hartungen2, Gernot Hanel2, Hans Seehauser2, Lukas Märk2, and Tilmann D. Märk1,2 — 1Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck, Technikerstr. 25, 6020 Innsbruck, Austria — 2IONICON Analytik GmbH, Eduard-Bodem-Gasse 3, 6020 Innsbruck, Austria — 3on leave from IONICON (Marie Curie-IAPP project no 218065)
The direct aqueous injection (DAI) technique was recently utilized for the detection of illicit substances in liquid phase. DAI turns out to be an ideal solution for direct analysis of liquid samples, since we can make good use of the outstanding advantages, such as real-time analysis, no sample preparation, low detection limits and short response time. Differences in TNT concentration in the water could be seen dependent on time and original size of the pieces and we could demonstrate a linear correlation between the concentration in liquid and the PTR-MS signal [1]. Furthermore, we were also able to demonstrate that this method is capable of detecting minute traces of "rape drugs", i.e. γ-butyrolactone and 1,4-butanediol, in liquids. This new method achieving sensitivities in the around 100 pptw range appears therefore well suited for the fight against drug crime and terrorism and for the evaluation of contamination of ammunition dumping sites.
[1] S. Jürschik et al.; ABC (2010) in press.