title: Determination of polychlorinated biphenyls in water using dynamic hollow fiber liquid-phase microextraction and gas chromatography-mass spectrometry.
abstract: The application of dynamic hollow fiber liquid-phase microextraction (dynamic HF-LPME) and gas chromatography-mass spectrometry (GC-MS) for the determination of trace amounts of polychlorinated biphenyls (PCBs) in water was investigated. The experimental parameters were optimized. Under the optimum conditions, the concentration enrichment factors for PCBs were from 718-fold to 840-fold. The calibration curves were linear over a range of 0.05-90 microg/L, with a correlation coefficient (r(2)) of 0.9957-0.9979. The relative standard deviation (RSD) ranged from 3.4% to 5.8% for intra-day variation and from 4.1% to 7.3% for inter-day variation. The limits of detection (LODs, S/N=3:1) were in the range of 13-41 ng/L. The recoveries for spiked water samples ranged from 85.9% to 92.0%.
authors.affiliation: Jiangsu Key Laboratory of Environmental Science and Engineering, Suzhou University of Science and Technology, No. 1701 Binhe Road, Suzhou, Jiangsu Province, China.
authors.forename: Guanhua
authors.initials: G
authors.lastname: Li
authors.forename: Lijun
authors.initials: L
authors.lastname: Zhang
authors.forename: Zhanen
authors.initials: Z
authors.lastname: Zhang
mesh_terms: D002138:Calibration; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D009994:Osmolar Concentration; D011078:Polychlorinated Biphenyls / Q000032:analysis*; D015203:Reproducibility of Results; D013696:Temperature; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D014874:Water Pollutants, Chemical; D011078:Polychlorinated Biphenyls