A supercritical fluid extraction @FE) procedure for polychlorinated biphenyls (PCBs) has been optimized as an efficient method for the extraction and recovery of these compounds in native pollutants. The optimum pressure, temperature, time factors and cosolvent composition that enable maximum extrac
Optimization of supercritical carbon dioxide extraction for polychlorinated biphenyls and chlorinated benzenes from sediments
β Scribed by Hing-Biu Lee; Thomas E. Peart
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 827 KB
- Volume
- 663
- Category
- Article
- ISSN
- 1873-3778
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A simple and rapid procedure to extract polychlorinated biphenyls Ε½ . PCBs from marine sediments by means of microwave energy is proposed. Both spiked and real sediment samples were irradiated with microwaves in a closed-Ε½ . vessel system while immersed in hexaneαacetone 1:1 . Factorial design was a
## Abstract The main advantages of using supercritical fluids for the extractions of organic pollutants from environmental matrix is that they are inexpensive, contaminant free, and less costly to dispose safely than organic solvents. In this work, a series of extraction experiments were carried ou
Supercritical carbon dioxide (SC-CO,) successfully extracted triglycerides from crude Shea nut oil (Butyrospensm purkii) at temperatures of 4O-8O0C and pressures of 100-400 bar. Selective removal of free fatty acid, mono-and &-glycerides, iron, triterpene acetates, triterpene cinnamates and polyisop