Abstract
A procedure was developed for determining traces of O-isopropyl methylphosphonofluoridate (sarin) in soils at a level of 2 × 10−4 mg/kg. The procedure is based on solvent extraction with a hexane-benzene mixture, the preconcentration of the extract to a small volume, the synthesis of dialkyl esters using secondary alcohol aluminates, and gas-chromatographic separation on an HP-1 column with a flame ionization detector. The determination error does not exceed 29%; the time of analysis is 1 h.
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Original Russian Text © I.N. Stan’kov, V.B. Kondrat’ev, V.I. Tsekhmister, I.D. Derevyagina, S.V. Sadovnikov, O.T. Morozova, V.I. Selivanova, N.E. Kuz’mina, I.E. Karaseva, 2010, published in Zhurnal Analiticheskoi Khimii, 2010, Vol. 65, No. 11, pp. 1158–1168.
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Stan’kov, I.N., Kondrat’ev, V.B., Tsekhmister, V.I. et al. Gas-chromatographic determination of traces of O-isopropyl methylphosphonofluoridate (sarin) in soils using its diastereomers. J Anal Chem 65, 1132–1142 (2010). https://doi.org/10.1134/S1061934810110080
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DOI: https://doi.org/10.1134/S1061934810110080