Determination of Some Polychlorinated Biphenyls in River Tigris within Baghdad City | ||
| Ibn Al-Haitham Journal For Pure And Applied Science | ||
| Article 1, Volume 29, Issue 3, December 2016, Pages 118-131 | ||
| Author | ||
| Khalid Waleed Salih Al-Janabi | ||
| Abstract | ||
| A number of aqueous samples were collected from river Tigris in Baghdad city, enriched ~1000 times using solid phase extraction (SPE), then extracted the trace concentrations of some polychlorinated biphenyls (PCB) using an aqueous two-phase system (ATPS) composed of 1-Methylpyridinium chloride [MePy]Cl and KH2PO4 salt. High performance liquid chromatography technique coupled with ultraviolet (HPLC-UV) is used for the quantification. Extraction under the optimized conditions of pH, solvent composition, duration and temperature has given with a yield of PCB about 91%. The limit of detection (LOD) and limit of quantification (LOQ) for analyses are 0.11-0.62 μg.L−1 and 2.67–3.43 μg.L−1 respectively with relative standard deviations (RSD) ranging from 2.9-7.6 %. The method can be applied for the analysis of other PCBs and bimolecular traces in aqueous media | ||
| Keywords | ||
| Polychlorinated Biphenyls; aqueous two; phase system; Methylpyridinium chloride; Solid Phase Extraction; PCB; ATPS; MePy; SPE | ||
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