文献类型：期刊文献

英文题名：Solid-phase extraction combined with dispersive liquid-liquid microextraction for the determination for polybrominated diphenyl ethers in different environmental matrices

作者：Liu, Xiujuan[1,2];Li, Jianwang[1];Zha, Zhixu[1];Zhang, Wei[3];Lin, Kuangfei[3];Huang, Changjiang[1];Wang, Xuedong[1]

机构：[1]Wenzhou Med Coll, Sch Environm Sci & Publ Hlth, Wenzhou 325035, Peoples R China;[2]Cent China Normal Univ, Minist Educ, Key Lab Pesticide & Chem Biol, Wuhan 430079, Peoples R China;[3]E China Univ Sci & Technol, State Environm Protect Key Lab Environm Risk Asse, Shanghai 200237, Peoples R China

年份：2009

卷号：1216

期号：12

起止页码：2220

外文期刊名：JOURNAL OF CHROMATOGRAPHY A

收录：;EI(收录号：20090911932169);WOS:【SCI-EXPANDED(收录号:WOS:000264217800002)】；

基金：This work was jointly funded by Key Project of Natural Science Foundation of Zhejiang Province (Z2080266), National Natural Science Foundation of China (20677015) and International Cooperation Project of Wenzhou City (H20080063).

语种：英文

外文关键词：Solid-phase extraction combined with dispersive liquid-liquid microextration (SPE-DLLME); Water sample; Plant sample; Gas chromatography-electron capture detection (GC-ECD); Polybrominated diphenyl ethers (PBDEs)

摘要：An analytical method. solid-phase extraction combined with dispersive liquid-liquid microextration (SPE-DLLME). was established to determine polybrominated diphenyl ethers (PBDEs) in water and plant samples. After concentration and purification of the samples in LC-C18 column, 1.0-mL elution sample containing 22.0 mu L 1,1,2,2-tetrachloroethane was injected rapidly into the 5.0-mL pure water. After extraction and centrifuging, the sedimented phase was injected rapidly into gas chromatography with electron-capture detection (GC-ECD). For water samples, enrichment factors (EFs) are in the range of 6838-9405 under the optimum conditions. The calibration curves are linear in the range of 0.1-100 ngL(-1) (BDEs 28, 47) and 0.5-500 ng L-1 (BDEs 100, 99,85,154,153). The relative standard deviations (RSDs) and the limits of detection (LODs) are in the range of 4.2-7.9% (n = 5) and 0.03-0.15 ng L-1, respectively. For plant samples, RSDs and LODs are in the range of 5.9-11.3% and 0.04-0.16 mu g kg(-1), respectively. The relative recoveries of well, river, sea. leachate, and clover samples, spiked with different levels of PBDEs, are 66.8-94.1%, 72.2-100.5%, 74.5-110.4%, 62.1-105.1%, 66.1-91.7%, 62.4-88.9%, and 64.5-83.2%, respectively. The results show that SPE-DLLME is a Suitable method for the determination of PBDEs in water and plant samples. (c) 2009 Elsevier B.V. All rights reserved.