Title of article :
A New Method for Determination of Polychlorinated Biphenyls (PCBs) in Water Samples by Switchable Hydrophilicity Solvent Based Homogenous Liquid-Liquid Microextraction Combined with GC-MS
Author/Authors :
Salari, Elahe Department of Chemistry - Faculty of Science - University of Zabol, Zabol , Nejati-Yazdinejad, Massoud Department of Chemistry - Faculty of Science - University of Zabol, Zabol , Ahmar, Hamid Department of Chemistry - Faculty of Science - University of Zabol, Zabol , Adlnasab, Laleh Department of Chemistry - Chemistry and Petrochemistry Research Center - Standard Research Institute, Karaj
Abstract :
Herein, a simple, rapid, and efficient method based on pH assisted homogenous liquid-liquid microextraction was
combined with gas chromatography- mass spectrometry (GC-MS) to do trace analysis of polychlorinated
biphenyls (PCBs) in water samples. Triethylamine (TEA) was used as a switchable hydrophilicity solvent which
can be miscible/immiscible with aqueous sample by varying the pH of the sample solution. In this regard, the
effects of various parameters were explored on the extraction performance of PCBs. Detection limits,
quantification limits and linear dynamic ranges were equal to 0.15 μg L-1, 0.5 μg L-1 and 0.5-150 μg L-1
respectively. The RSDs% (n = 3) were in the range of 5.2-6.4 and 5.6-7.2 for intra-day and inter-day assays,
respectively. Ultimately, the method was employed for determination of PCBs in water samples.
Keywords :
Polychlorinated Biphenyls , Switchable Hydrophilicity Solvent , Homogenous Liquid-Liquid Microextraction , GCMS Analysis
Journal title :
Iranian Journal of Analytical Chemistry
