Evidence of VX nerve agent use from contaminated white mustard plants

Matthew R. Gravett, Farrha B. Hopkins, Adam J. Self, Andrew J. Webb, Christopher M. Timperley, Matthew J. Baker

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17 Citations (Scopus)

Abstract

The Chemical Weapons Convention prohibits the development, production, acquisition, stockpiling, retention, transfer or use of chemical weapons by Member States. Verification of compliance and investigations into allegations of use require accurate detection of chemical warfare agents (CWAs) and their degradation products. Detection of CWAs such as organophosphorus nerve agents in the environment reliesmainly upon the analysis of soil.We now present a method for the detection of the nerve agent VX and its hydrolysis products by gas chromatography and liquid chromatography mass spectrometry of ethanol extracts of contaminated white mustard plants (Sinapis alba) which retained the compounds of interest for up to 45 days. VX is hydrolysed by the plants to ethyl methylphosphonic acid and then to methylphosphonic acid. The utility of white mustard as a nerve agent detector and remediator of nerve agent-polluted sites is discussed. The work described will help deter the employment of VX in conflict.

Original languageEnglish
Article number20140076
Number of pages14
JournalProceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences
Volume470
Issue number2168
DOIs
Publication statusPublished - 8 Aug 2014

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Keywords

  • chemical weapons
  • gas chromatography
  • liquid chromatography
  • mass spectrometry
  • Sinapis alba
  • VX
  • white mustard

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