Use of rotating-coiled columns for sample preparation in the analysis of petropolluted soils

摘要

It is shown for the first time that rotating-coiled columns (RCC) can be used as sample preparation tools in the analysis of petropolluted soils. The use of RCC allows for the extraction of petroleum products from soils in the dynamic mode without using additional means of sample preparation. A test sample of soil is retained in an RCC as a stationary phase. Petroleum products are extracted from soil in 15-25 mL of an organic solvent (n-hexane, acetonitrile). Sample preparation lasts no more than 60 min. Examples are presented for the extraction of hydrocarbons, constituents of diesel fuel, and phthalates in the analysis of petropolluted soil samples taken from the territory of oil-extracting and oil-refining enterprises of the Krasnoyarsk region and the Khanty-Mansiisk autonomous area.