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Frontiers of Agriculture in China

ISSN 1673-7334

ISSN 1673-744X(Online)

CN 11-5729/S

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Front Agric Chin    2010, Vol. 4 Issue (4) : 489-493    https://doi.org/10.1007/s11703-010-1032-8
RESEARCH ARTICLE
Determination of polychlorinated biphenyls by GC/MS with ultrasound-assisted extraction from shellfish
Qunbiao ZHOU, Yaxin SANG, Li WANG, Shuangshang JI, Jing YE, Xianghong WANG()
College of Food Science & Technical, Agricultural University of Hebei, Baoding 071001, China
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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.
Keywords ultrasound-assisted extraction      GC/MS      shellfish      PCBs (polychlorinated biphenyls)     
Corresponding Author(s): WANG Xianghong,Email:wangxianghong73@sina.com   
Issue Date: 05 December 2010
 Cite this article:   
Shuangshang JI,Jing YE,Xianghong WANG, et al. Determination of polychlorinated biphenyls by GC/MS with ultrasound-assisted extraction from shellfish[J]. Front Agric Chin, 2010, 4(4): 489-493.
 URL:  
https://academic.hep.com.cn/fag/EN/10.1007/s11703-010-1032-8
https://academic.hep.com.cn/fag/EN/Y2010/V4/I4/489
Fig.1  Total ion chromatogram of seven PCBs mixtures
Note: 1: PCB28; 2: PCB52; 3: PCB101; 4: PCB118; 5: PCB130; 6: PCB153; 7: PCB180.
Fig.2  Total ion chromatogram of
Note: 1: PCB28; 2: PCB52; 3: PCB101; 4: PCB118; 6: PCB153.
PCBsstandard curverrecovery/%RSD/%limits/μg·kg-1
PCB28Y=3.778X-1.0060.999283.425.52%0.03
PCB52Y=2.598X-7.5290.999480.925.12%0.04
PCB101Y=2.614X-1.0090.998181.314.89%0.04
PCB118Y=2.336X-6.2910.999081.673.70%0.03
PCB138Y=2.112X-8.2570.996894.374.24%0.06
PCB153Y=3.084X-1.1470.999296.894.67%0.08
PCB180Y=1.729X-3.9960.999793.894.13%0.08
Tab.1  The standard curves, recovery ( = 6), and detection limits of PCBs
speciesPCB28PCB52PCB101PCB118PCB130PCB153PCB180PCBs
Argopecten irradians4.4310.454.144.33–7.26–30.61
Gomphina aequilatera2.208.84–4.26–2.63–17.93
Crassostrea virginica4.2810.954.144.23–––23.60
Pecten yessoensis4.295.61–4.23–––14.12
Scapharca subcrenata4.417.71–4.58–4.374.2125.27
Mytilus edulis4.4411.94.764.442.215.49–33.24
Tab.2  Results of seven PCBs in shellfish from the coastal areas of Qinhuangdao city (μg·kg; = 3)
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