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Abstract
Accelerated solvent extraction (ASE) is suitable for the extraction of PAHs from solid samples, as a sample preparation technique for subsequent analytical techniques. Due to the elevated temperatures and pressures used for ASE considerable time and solvent savings are achieved. The time required is less than 15 min. per sample, and solvent usage is reduced significantly (15 mL per 10 g sample) compared to conventional solvent extraction techniques like Soxhlet extraction. Equivalency of the extraction results are shown by the cornparision of ASE to conventional extraction techniques. ASE has already been accepted by the U.S. EPA, and meets the requirement of SW-846 method 3545.
