PMID: 11911528Mar 26, 2002Paper

Persistent chlorinated pesticides and polychlorinated biphenyls in selected fish species from Lake Tanganyika, Burundi, Africa

Environmental Pollution
P ManirakizaP Schepens

Abstract

Concentrations of selected organochlorine pesticides and PCBs in seven fish species (cichlids) from the north end of the Lake Tanganyika, Burundi, Africa were determined. Results were compared to previous work on the Lake Tanganyika and other water bodies and to the European Community maximum residue levels (MRLs) in edible fat. The analytical method included a hot Soxhlet extraction with a mixture of acetone: hexane (1:3, v/v), gravimetrically lipid determination, and a single step clean-up. For PCBs and stable pesticides, the clean-up was done on activated silica gel impregnated with concentrated sulfuric acid, while for non acid-stable pesticides superposed layers of alumina, silica and florisil impregnated with 15% methanolic solution of KOH were successively used. Recoveries of organochlorine pesticides from certified reference material (CRM 430) were ranging from 86% for p,p'-DDT to 107% for endrin, while recoveries from blank fat spiked fortified at three different levels were between 65% for alachlor at the lowest fortification level and 107% for mirex at the highest fortification level. The limits of detection for each analyte were ranging from 0.1 ng/g to 0.5 ng/g fat. All chlorinated pesticides were found in the anal...Continue Reading

Citations

Feb 19, 2005·Archives of Environmental Contamination and Toxicology·U H YimJ R Oh
Oct 29, 2011·Bulletin of Environmental Contamination and Toxicology·Victor WepenerLieven Bervoets
Mar 25, 2008·Marine Pollution Bulletin·G KruitwagenS E Wendelaar Bonga
Aug 6, 2013·The Science of the Total Environment·Doha Yahia, Eman E Elsharkawy
Jun 15, 2011·Food and Chemical Toxicology : an International Journal Published for the British Industrial Biological Research Association·Daniele BotaroKarl-Werner Schramm
Feb 25, 2014·The Science of the Total Environment·Graciela G NicolaBegoña Jiménez
Mar 26, 2014·The Science of the Total Environment·Patrick SsebugereGuibin Jiang
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Jul 28, 2016·Environmental Monitoring and Assessment·John Oluoch-OtiegoMary A Opiyo
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Oct 22, 2008·Bulletin of Environmental Contamination and Toxicology·Hélène Roche, Abiba Tidou
Oct 24, 2003·Environmental Science & Technology·Jason C WhiteMaryJane Incorvia Mattina

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