Determination of Organochlorine Pesticides in Soils And Sediments Taken from the Kura-Araks Rivers Systems Using GC/ECD
Navai A. IBADOV, Famil Y. HUMBATOV and Murad SAMADOV
Institute of Radiation Problems of Azerbaijan NAS, 121 H. Javid aven, AZ1143, Baku, Azerbaijan
Abstract: The organochlorine pesticides (OCPs), due the wide use in agriculture until about 30 years (except the most recent bans by the EU for lindane, methoxychlor and endosulfan) and their chemical stability and slow biodegradation became ubiquitous pollutants. Most OCPs are persistent organic pollutants that have long life cycles in the environment and being transported for long distances. The residues of pesticides in soil can be absorbed by plants, entering the food chain, leading to bioaccumulation. The objective of this study was to determine the presence of 14 OCPs (HCH (α, β, γ,δ), aldrin, α-endosulfan, dieldrin, 4,4’-DDE, endrin, β-endosulfan, 4,4’-DDD, 4,4’-DDT, endosulfan sulfate, endrin aldehyde) in soils and sediments from Kura-Araks rivers systems of the Azerbaijan. The extraction was performed with using methylene chloride/acetone (1:1), after changing solvent to hexane and cleaning-up by SG, samples were analyzed by GC-ECD and confirmation was carried out by GC/MS.
Keywords: Gas chromatography, organochlorine pesticides, Kura-Araks rivers, GCECD, GC/MS.
Pages: 283 – 294 | Full PDF Paper