Evaluation of extraction methods for the analysis of selected polybrominated diphenyl ethers and hexabromobiphenyl (BB-153) – Application to aqueous environmental samples

摘要: The increasing evidence of the presence organic pollutants in different aqueous matrices has led to development many analytical techniques. isolation these compounds from remains an integral component In this study, performance three extraction methods, namely separatory funnel, magnetic stirring and solid-phase methods commonly applied was assessed. efficiencies target BDE 28, 47, 100, 99, 154, 153 183 as well BB were evaluated using spiking experiments. More so, a modified clean-up technique compared with conventional glass column chromatographic technique. results studies showed that funnel gave best recoveries. percent recoveries ranged 72 89%, 65 84% 26 122% for techniques, respectively. technique, which requires use fewer quantities adsorbent material eluting solvent, comparable combination method techniques matrices, including river water, wastewater treatment effluent landfill leachate samples.   Key words: Polybrominated diphenyl ethers (PBDEs), leachate, effluent, black river, Cape Town.