MMSL 2013, 82(4):149-155 | DOI: 10.31482/mmsl.2013.024

DETECTION OF 2-(DIALKYLAMINO)ETHANETHIOLS AND V-SERIES NERVE AGENTS IN WATER AND AQUEOUS SOLUTIONS USING FOLIN-CIOCALTEU REAGENTOriginal article

Vladimír Pitschmann1, Lukáš Matějovský2*, Zbyněk Kobliha3
1 Oritest spol, s r.o., Staropramenná 17, 150 00 Prague, Czech Republic
2 Institute of Chemical Technology, Faculty of Environmental Technology, Technická 5, 166 28 Prague, Czech Republic
3 NBC Defence Institute, University of Defence, Kounicova 156, 662 10 Brno, Czech Republic

A simple colorimetric tube detector for the detection of 2-(dialkylamino)ethanethiols and V-series nerve agents in water and in aqueous solutions is proposed. The detector is based on the reaction of the compounds with a chromogenic Folin-Ciocalteu reagent yielding a blue coloured reduction product. The detection limit of 2-(dialkylamino)ethanethiols is 2.5 mg/l, measurement range up to 250 mg/l. The detection limit of the V (VX) agent is 10 mg/l. The method allows V agents and their precursors and hydrolysis products to be easily distinguished from G-series nerve agents.

Keywords: colorimetric tube detector, water analysis; V-series nerve agents; 2-(dialkylamino)ethanethiols; Folin-Ciocalteu reagent

Received: October 3, 2013; Revised: November 12, 2013; Published: December 5, 2013  Show citation

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Pitschmann, V., Matějovský, L., & Kobliha, Z. (2013). DETECTION OF 2-(DIALKYLAMINO)ETHANETHIOLS AND V-SERIES NERVE AGENTS IN WATER AND AQUEOUS SOLUTIONS USING FOLIN-CIOCALTEU REAGENT. MMSL, 82(4), 149-155. doi: 10.31482/mmsl.2013.024
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