Extraction of petroleum hydrocarbons from soil using supercritical argon.

@article{Liang1998ExtractionOP,
  title={Extraction of petroleum hydrocarbons from soil using supercritical argon.},
  author={Shijiang Liang and David C Tilotta},
  journal={Analytical chemistry},
  year={1998},
  volume={70 3},
  pages={616-22}
}
The use of supercritical argon is described for the extraction of petroleum hydrocarbons from soil samples. Argon is an attractive solvent because it is inexpensive and inert. Additionally, it has a clear spectral window in the infrared region which makes it useful for on-line (i.e., directly coupled) experiments. Spiking studies conducted with gasoline, no. 1 fuel oil, and no. 5 fuel oil on sand, loam, and clay show that component recovery rates for argon supercritical fluid extraction (SFE… CONTINUE READING