Selective Pressurized Liquid Extraction of Polychlorinated Biphenyls in Sediment
A selective pressurized liquid extraction procedure (SPLE) was developed for a fast determination of polychlorinated biphenyls in sediment. The final method was performed at 100°C with heptane/dichloromethane (90:10, v/v) as extraction solvent for 2 × 5 min. Sulfuric acid impregnated silica was placed downstream of the sample in the extraction cell to remove interfering components. This simultaneous extraction/clean-up was performed in 20 min, with an average congener recovery of 92% compared to a classical 24 h Soxhlet methodology and 2 h of external manual clean-up.
- Analytical sciences : the international journal of the Japan Society for Analytical Chemistry
Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 24(4), 531-533, 2008-04-10
The Japan Society for Analytical Chemistry