Supercritical fluid extraction of a highly toxic rocket-fuel component (1,1-dimethylhydrazine, UDMH) from peaty soils with carbon dioxide is proposed as a rapid method of sample preparation for ion-chromatographic analysis. Optimum conditions of extraction have been determined. The efficiency of the UDMH extraction can be improved by basic treatments of the soil sample and by the use of proper additives to SC CO2 (cosolvents).
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Kosyakov, D.S., Khviyuzov, S.S., Ul’yanovskii, N.V. et al. Supercritical fluid extraction of 1,1-dimethylhydrazine from peaty soils. Russ. J. Phys. Chem. B 7, 880–884 (2013). https://doi.org/10.1134/S1990793113070099
- supercritical fluid extraction