NDLI: Determination of DDT and Metabolites in Surface Water and Sediment Using LLE, SPE, ACE and SE

Content Provider	Springer Nature Link
Author	Sibali, Linda L. Okonkwo, Jonathan O. Zviwanda, Caliphs
Copyright Year	2009
Abstract	Surface water and sediment samples collected from Jukskei River in South Africa, were subjected to different extraction techniques, liquid–liquid (LLE), solid-phase extraction (SPE), activated carbon extraction (ACE) and soxhlet extraction (SE) for sediment. The samples were extracted with dichloromethane, cleaned in a silica gel column and the extracts quantified using a Varian 3800 GC-ECD. The percentage recovery test for 2,4′DDT, DDE and DDD and 4,4′DDT, DDE and DDD in water ranged from 80%–96% and 76%–95% (LLE); 56%–76% and 56%–70% (SPE) and 75%–84% (ACE), respectively; while that recoveries for sediment samples varied from 65%–95% for 2,4′DDT, DDE and DDD and 80%–91% for 4,4′DDT, DDE and DDD. The high recoveries exhibited by ACE compared very well with LLE and SE. This was not the case with SPE which exhibited the lowest value of recoveries for both 2,4 and 4,4′DDD, DDE and DDT standard samples. The mean concentrations of DDT and metabolites ranged from nd-1.10 μg/L, nd-0.80 μg/L, nd-1.21 μg/L and 1.92 μg/L for LLE, SPE, ACE and SE, respectively. The total DDT (2,4′ and 4,4′-DDT) in water and sediment samples ranged from 1.20–3.25 μg/L and 1.82–5.24 μg/L, respectively. The low concentrations of the DDT metabolites obtained in the present study may suggest a recent contamination of the river by DDT.
Starting Page	885
Ending Page	891
Page Count	7
File Format	PDF
ISSN	00074861
Journal	Bulletin of Environmental Contamination and Toxicology
Volume Number	83
Issue Number	6
e-ISSN	14320800
Language	English
Publisher	Springer-Verlag
Publisher Date	2009-08-28
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Extraction methods DDT Metabolites Surface water Sediments Waste Water Technology / Water Pollution Control / Water Management / Aquatic Pollution Environmental Chemistry Soil Science & Conservation Ecotoxicology Environmental Health Pollution
Content Type	Text
Resource Type	Article
Subject	Health, Toxicology and Mutagenesis Pollution Medicine Toxicology

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