Extraction Techniques for Polycyclic Aromatic Hydrocarbons in Soils

Table 2

Bibliographic compilation of solvents used in the extraction of PAHs.

Extraction technique	Solvent	PAHs studied	Solvent(s) with high PAH extraction efficiency	Reference
Sonication	Acetone, cyclohexane, 2-propanol, methanol, dichloromethane, acetonitrile	16 PAHs	40% acetone in water	[15]
FBE	Cyclohexane-acetone (90 : 10 and 30 : 70), n-hexane-acetone (90 :  10 and 40 : 60), cyclohexane, n-hexane	16 PAHs	Cyclohexane, n-hexane	[41]
MAE	Hexane, dichloromethane, acetonitrile, acetone, hexane-acetone (1 : 1)	16 PAHs	Hexane-acetone (1 : 1)	[49]
SFE	Cyclohexane-acetone (1 : 1), hexane-acetone (1 : 1), dichloromethane	Naphthalene	Hexane-acetone (1 : 1)	[50]