Trimethyloxonium tetrafluoroborate (TMO.BF4) has been used in the simultaneous derivatization of phosphonic and 2-aminoethylsulfonic acids related to nerve agents in different soils for their enhanced detection and identification by electron ionization gas chromatography-mass spectrometry (EI-GC-MS). The panel of acids consisted of five Schedule 2 phosphonic acids (methyl methylphosphonic acid, ethyl methylphosphonic acid, isopropyl methylphosphonic acid, pinacolyl methylphosphonic acid and cyclohexyl methylphosphonic acid) along with two sulfonic acids, N,N-diethyl-2-aminoethylsulfonic acid and N,N-diisopropyl-2-aminoethylsulfonic acid. The acids were converted to their corresponding methyl esters at ambient temperature when present at a 10 µg g-1 concentration in three separate soils: Virginia type A soil, Ottawa sand and Nebraska EPA soil [LLNL-ABS-747462]

Methylation of phosphonic acids related to nerve agents and their subsequent analysis by EI-GC-MS and GC-FPD

256th National Meeting (2018)

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