NDLI: Detection of Chemical Warfare Agents with a Miniaturized High-Performance Drift Tube Ion Mobility Spectrometer Using High-Energetic Photons for Ionization.

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Detection of Chemical Warfare Agents with a Miniaturized High-Performance Drift Tube Ion Mobility Spectrometer Using High-Energetic Photons for Ionization.

Content Provider	Europe PMC
Author	Ahrens, André Allers, Maria Bock, Henrike Hitzemann, Moritz Ficks, Arne Zimmermann, Stefan
Copyright Year	2022
Abstract	A growing demand for low-cost gas sensors capable ofdetectingthe smallest amounts of highly toxic substances in air, includingchemical warfare agents (CWAs) and toxic industrial chemicals (TICs),has emerged in recent years. Ion mobility spectrometers (IMS) areparticularly suitable for this application due to their high sensitivityand fast response times. In view of the preferred mobile use of suchdevices, miniaturized ion drift tubes are required as the core ofIMS-based lightweight, low-cost, hand-held gas detectors. Thus, weevaluate the suitability of a miniaturized ion mobility spectrometerfeaturing an ion drift tube length of just 40 mm and a high resolvingpower of Rp = 60 for the detection ofvarious CWAs, such as nerve agents sarin (GB), tabun (GA), soman (GD),and cyclosarin (GF), as well as the blister agent sulfur mustard (HD),the blood agent hydrogen cyanide (AC) and the choking agent chlorine(CL). We report on the limits of detection reaching minimum concentrationlevels of, for instance, 29 pptv for sarin (GB) withinan averaging time of only 1 s. Furthermore, we investigate the effectsof precursors, simulants, and other common interfering substanceson false positive alarms.
ISSN	00032700
Journal	Analytical Chemistry
Volume Number	94
PubMed Central reference number	PMC9647701
Issue Number	44
PubMed reference number	36301910
e-ISSN	15206882
DOI	10.1021/acs.analchem.2c03422
Language	English
Publisher	American Chemical Society
Publisher Date	2022-10-27
Access Restriction	Open
Rights License	Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/). © 2022 The Authors. Published by American Chemical Society
Content Type	Text
Resource Type	Article
Subject	Analytical Chemistry

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