Analysis and Occurrences of Methoxylated Polybrominated Diphenyl Ethers and Polybrominated Diphenyl Ethers in Channel Catfish, Crayfish, Fish Feeds and Fishmeal from China
Science Journal of Analytical Chemistry
Volume 2, Issue 3, May 2014, Pages: 17-28
Received: Aug. 5, 2014; Accepted: Aug. 19, 2014; Published: Aug. 30, 2014
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Authors
Xiaozhong Hu, Technology Center of Hubei Entry-Exit Inspection and Quarantine Bureau of PRC, Qintai Road 588, Wuhan 430050, China
Decong Hu, Technology Center of Hubei Entry-Exit Inspection and Quarantine Bureau of PRC, Qintai Road 588, Wuhan 430050, China
Hui Wang, Technology Center of Hubei Entry-Exit Inspection and Quarantine Bureau of PRC, Qintai Road 588, Wuhan 430050, China
Wei Chen, Technology Center of Hubei Entry-Exit Inspection and Quarantine Bureau of PRC, Qintai Road 588, Wuhan 430050, China
Bin Wu, Technology Center of Liaoning Entry-Exit Inspection and Quarantine Bureau of PRC, Changjiang East Road 60, Dalian 116001, China
Changjun Lin, Technology Center of Liaoning Entry-Exit Inspection and Quarantine Bureau of PRC, Changjiang East Road 60, Dalian 116001, China
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Abstract
PBDEs are widely used brominated flame retardant, which are increasingly reported in the environment. MeO-PBDEs are structural analogs to PBDEs, and reported as natural products and novel pollutants present in the environment. Concentrations of thirteen PBDEs and eight MeO-PBDEs in a large number of channel catfish, crayfish, fish feeds and fishmeal collected from Hubei province of China were investigated in this study. A fast isotopic dilution GC-MS method was firstly developed to simultaneously determine thirteen PBDEs and eight MeO-PBDEs in channel catfish, crayfish, fish feeds and fishmeal in this study, and especially for the first time MeO-PBDEs and PBDEs in crayfish, fish feeds and fishmeal. Pressurized liquid extraction and multi-layer silica gel column chromatography cleanup were used, and some important steps and crucial parameters were modified and intensified compared with other literatures. Besides, the conditions of GC and MS were also optimized. The limits of quantitation values of 0.25-5, 1-5 μg kg-1 wet weight in channel catfish and crayfish were calculated for PBDEs and MeO-PBDEs, respectively; so did 1-20, 4-20 μg kg-1 wet weight in fish feeds and fishmeal. In addition, good repeatability and accuracy of the whole method were achieved. The established methods were therefore suitable for the simultaneous determinations of thirteen PBDEs and eight MeO-PBDEs in these samples at trace contamination levels. Using the established methods, PBDEs or MeO-PBDEs emerged in 2 of 80 channel catfish, 1 of 80 crayfish, 6 of 60 fish feeds and 4 of 40 fishmeal, and in low-μg kg-1 wet weight for these samples.
Keywords
Methoxylated Polybrominated Diphenyl Ethers (MeO-PBDEs), Channel Catfish, Crayfish, Fish Feeds, Fishmeal
To cite this article
Xiaozhong Hu, Decong Hu, Hui Wang, Wei Chen, Bin Wu, Changjun Lin, Analysis and Occurrences of Methoxylated Polybrominated Diphenyl Ethers and Polybrominated Diphenyl Ethers in Channel Catfish, Crayfish, Fish Feeds and Fishmeal from China, Science Journal of Analytical Chemistry. Vol. 2, No. 3, 2014, pp. 17-28. doi: 10.11648/j.sjac.20140203.12
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