Even after accepting that Keystone XL would not accelerate extraction of the Canadian oil sands, I still opposed the project because the pipeline would cross environmentally sensitive regions, such as the Sandhills of Nebraska, a natural wetland that supports many species, including migratory birds, and the Ogallala Aquifer, one of the world's largest groundwater resources.
Extraction was conducted using accelerated solvent extraction (ASE) and extracts were purified using an ENVI-Florisil SPE column (500 mg, 3 mL).
ZON and α-ZOL were extracted from tissue by accelerated solvent extraction (ASE) and ultrasonic extraction (UE).
PAHs were extracted from soil using accelerated solvent extraction (ASE 200 Accelerated Solvent Extraction System, Dionex) at 100°C using 35% acetone: 65% hexane (Omnisolv grade solvents, Fisher Scientific, Ottawa, ON).
During the pretreatment procedure, the target compounds were extracted from the samples using accelerated solvent extraction (ASE), and the extracted samples were then purified using four steps for clean-up: liquid liquid extraction (LLE), Florisil clean-up, aqueous alkali extraction (AAE) and hydrophilic lipophilic balance (HLB) enrichment.
On the other hand, accelerated solvent extraction (ASE) offer fast extraction (12 18 min).
Blank measurements with respect to PAHs, PBDEs and TBT were also performed using the methodologies listed in Table 1.> -wrap-foot> acceleratedated solvent extraction; MAE microwave assisted extraction In order to avoid biological activity, the HA stock solution (868 ± 36 mg DOC L−1) was irradiated as described in the section " Irradiation of the test materials".
Monacolin K from red yeast rice was extracted by accelerated solvent extraction (ASE).
Briefly, POPs were extracted using accelerated Soxhlet extraction followed by a two-step cleanup procedure that included adsorption chromatography on acid silica gel followed by gel permeation chromatography.
