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| Simultaneous determination of PBDEs in marine organisms by gas chromatography - mass spectrometry based on stable isotope internal standards |
| Received:December 24, 2024 |
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| KeyWord:gas chromatography-negative chemical source mass spectrometry;polybrominated diphenyl ethers;marine organisms;isotope internal standard |
| Author Name | Affiliation | E-mail | | TANG Li | Marine and Fisheries Research Institute of Zhejiang Ocean University, Zhoushan 316012, China | | | SUN Xiumei | Zhejiang Marine Fisheries Research Institute, Key Laboratory of Sustainable Utilization of Technology Research for Fisheries Resources of Zhejiang Province, Zhoushan 316021, China | 250438667@qq.com | | JIN Yanjian | Zhejiang Marine Ecology Environment Monitoring Center, Zhoushan 316021, China | | | SONG Suping | Marine and Fisheries Research Institute of Zhejiang Ocean University, Zhoushan 316012, China | | | HAO Qing | Zhejiang Marine Fisheries Research Institute, Key Laboratory of Sustainable Utilization of Technology Research for Fisheries Resources of Zhejiang Province, Zhoushan 316021, China | | | ZHU Jian | Zhejiang Marine Fisheries Research Institute, Key Laboratory of Sustainable Utilization of Technology Research for Fisheries Resources of Zhejiang Province, Zhoushan 316021, China | | | LI Tiejun | Zhejiang Marine Fisheries Research Institute, Key Laboratory of Sustainable Utilization of Technology Research for Fisheries Resources of Zhejiang Province, Zhoushan 316021, China | | | GUO Yuanming | Zhejiang Marine Fisheries Research Institute, Key Laboratory of Sustainable Utilization of Technology Research for Fisheries Resources of Zhejiang Province, Zhoushan 316021, China | |
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| Abstract: |
| In order to simultaneously determine 13 polybrominated diphenyl ethers（PBDEs）in marine animals, an isotope internal standard-gas chromatography-negative chemical source mass spectrometry method was established. 2 g of animal samples were mixed with 8 isotope mixed internal standard solutions labeled with 13C12, and 13 kinds of PBDEs were analyzed by GC-NCI/MS selective ion monitoring （SIM）mode by selective ion monitoring（SIM）mode. The results showed that the 13 PBDEs were effective in 0.1-20 μg · L-1. The correlation coefficient（r2）was>0.995（except BDE-206, r2>0.98）, the detection limit（S/N=3）was 0.01-0.46 μg·kg-1, and the quantitative limit（S/N=10）was 0.02-1.52 μg·kg-1. The results showed that 13 kinds of PBDEs were detected in different degrees, with concentrations ranging from 2.95-10.03 μg·kg-1 and the content of medium and low brominated PBDEs was high. The results of actual samples show that the method is suitable for the accurate qualitative and quantitative analysis of 13 PBDEs including BDE-209 in marine animal samples. |
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