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Gas-Chromatographic Determination of Sarin, Soman, and O-Isobutyl S-2-(N,N-Diethylamino)ethyl Methylphosphonothioate (a VX-Like Compound) Traces in Water

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Abstract

A gas-chromatographic procedure for the determination of O-isobutyl S-2-(N,N-diethylamino)ethyl methylphosphonothioate (VX), sarin, and soman in water at levels of 2 × 10–6, 5 × 10–5, and 2 × 10–6 mg/L, respectively, was proposed. The procedure includes liquid–liquid extraction with the use of salting-out agents, back extraction, and evaporation. In this case, the VX compound was converted into O-isobutyl O-methyl methylphosphonate (a substance convenient for chromatographic determination) by the reaction with hydrochloric acid, methanol, thriethylamine, and silver nitrate.

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Authors and Affiliations

  1. Russian Research Institute of Organic Chemistry and Technology, sh. Entuziastov 23, Moscow, 111024, Russia

    I. N. Stan'kov, A. A. Sergeeva, I. D. Derevyagina & K. V. Konovalov

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  1. I. N. Stan'kov
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  2. A. A. Sergeeva
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  3. I. D. Derevyagina
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  4. K. V. Konovalov
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Stan'kov, I.N., Sergeeva, A.A., Derevyagina, I.D. et al. Gas-Chromatographic Determination of Sarin, Soman, and O-Isobutyl S-2-(N,N-Diethylamino)ethyl Methylphosphonothioate (a VX-Like Compound) Traces in Water. Journal of Analytical Chemistry 58, 160–164 (2003). https://doi.org/10.1023/A:1022362206338

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