A SIMPLE COLORIMETRIC DETECTOR OF SYMMETRIC 2-(DIALKYLAMINO)ETHANETHIOLS AS PRECURSORS OF V-TYPE NERVE AGENTS
| Autor: | PITSCHMANN,VLADIMÍ, MATĚJOVSKÝ,LUKJ, KOBLIHA,ZBYNĚK, HON,ZDENĚK |
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| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | Journal of the Chilean Chemical Society v.59 n.3 2014 SciELO Chile CONICYT Chile instacron:CONICYT |
| Popis: | A colorimetric detector tube of 2-(dialkylamino)ethanethiols as precursors of V-type nerve agents and their hydrolytic products was designed. The detector is based on a reaction of 2-(dialkylamino)ethanethiols with a chromogenic reagent 4-chloro-7-nitrobenzofurazan (NBD-Cl) in alkaline medium leading to characteristic coloured products. The detection limit in water is of 5 μg/ml, the optimum measurement range being up to 250 μg/ml. The detector also presented a response to some other warfare chemical agents, the colour shade being, however, different. Effects of disturbing substances and organic solvents were studied. |
| Databáze: | OpenAIRE |
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