Abstract
An efficient extraction method by ultrasound-assisted extraction (UAE) was developed for the extraction of polychlorinated biphenyls (PCB 28, 52, 101, 118, 130, 153, 180) from various shellfish. Analytes were determined by gas chromatography-mass spectrometry in selected ion monitoring (SIM) mode. All the samples were extracted by n-hexane and decontaminated by concentrated sulfuric acid. The resulting samples were determined by quantitative detection by comparing with external standards. The average recoveries of seven kinds of PCBs ranged from 80.92% to 93.89%, and the lowest detectable limit was 0.08-0.03 μg·kg−1. The average concentrations of total PCBs were 14.12–30.61 μg·kg−1 in the samples. This method was highly effective in reducing the cost and time for the pretreatment of samples. This method may be applied for the screening and monitoring of shellfish for organic pollutants in coastal waters.
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Zhou, Q., Sang, Y., Wang, L. et al. Determination of polychlorinated biphenyls by GC/MS with ultrasound-assisted extraction from shellfish. Front. Agric. China 4, 489–493 (2010). https://doi.org/10.1007/s11703-010-1032-8
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DOI: https://doi.org/10.1007/s11703-010-1032-8