Extraction of DDT [1,1,1,-trichloro-2,2-bis(p-chlorophenyl)ethane] and itsmetabolites DDE [1,1-dichloro-2,2-bis(p-chlorophenyl)ethylene] and DDD [1,1-dichloro-2,2-bis(p-chlorophenyl)ethane]) from aged contaminated soil

Pressurised liquid extraction (PLE) was used to extract DDT [1,1,1,-trichlo ro-2,2-bis(p-chlorophenyl)ethane] and its metabolites, DDD [1,1 -dichloro-2 ,2-bis( p-chlorophenyl)ethane] and DDE [1,1 -dichloro-2,2-bis(p-chloropheny l)ethylene] from an aged, contaminated soil. Using three sequential static phases, PLE removed an equivalent quantity of DDT and its metabolites as So xhlet extraction, in less time and with less solvent. Recovery was almost q uantitative, implying appropriate sample work-up and manipulation. (C) 2000 Elsevier Science B.V. All rights reserved.