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Microwave-assisted extraction of polycyclic aromatic hydrocarbons from marine sediments using nonionic surfactant
A Bianco Prevot1, M Gulmini, V Zelano
1Dipartimento di Chimica Analitica, Universitá di Torino, Italy.
Analytical Chemistry
|August 21, 2001
Abstract:
Microwave-assisted micellar extraction (MAME) has been tested for the recovery of polycyclic aromatic hydrocarbons (PAHs) present in samples of marine sediments. An aqueous solution of the nonionic surfactant polyoxyethylene(23)dodecyl ether (Brij 35) was employed as the extracting medium. The proposed approach showed recovery efficiencies comparable to those afforded by the Soxhlet technique with organic solvents, but a neat reduction of the extraction times and a better reproducibility were observed. A MAME-based protocol was successfully applied for the analysis of a certified sample.