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Supercritical fluid extraction for the determination of petroleum hydrocarbons in soil


Supercritical fluid extraction for the determination of petroleum hydrocarbons in soil



Journal of Chromatography A 845(1-2): 357-363



ISSN/ISBN: 0021-9673

DOI: 10.1016/s0021-9673(99)00326-x

The supercritical fluid extraction (SFE) of petroleum hydrocarbons (PHCs) was carried out spiking a clay-sand soil with saturated and aromatic fractions from crude oil. The effect of acetone concentration in the supercritical fluid acting as a modifier was also investigated. The best recoveries of PHCs close to 70-100% were obtained at 80 degrees C and 227 atm, corresponding to a fluid density of 0.65 g/ml of pure CO2, in the presence of 5% (v/v) acetone.

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Accession: 003953678

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