PMID- 19168180 OWN - NLM STAT- MEDLINE DCOM- 20090813 LR - 20151119 IS - 1873-3778 (Electronic) IS - 0021-9673 (Linking) VI - 1216 IP - 12 DP - 2009 Mar 20 TI - Solid-phase extraction combined with dispersive liquid-liquid microextraction for the determination for polybrominated diphenyl ethers in different environmental matrices. PG - 2220-6 LID - 10.1016/j.chroma.2008.12.092 [doi] AB - 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 microL 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 ng L(-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 microg 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. FAU - Liu, Xiujuan AU - Liu X AD - Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Central China Normal University, Wuhan, China. jtarrant@lortobco.com FAU - Li, Jianwang AU - Li J FAU - Zhao, Zhixu AU - Zhao Z FAU - Zhang, Wei AU - Zhang W FAU - Lin, Kuangfei AU - Lin K FAU - Huang, Changjiang AU - Huang C FAU - Wang, Xuedong AU - Wang X LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20090109 PL - Netherlands TA - J Chromatogr A JT - Journal of chromatography. A JID - 9318488 RN - 0 (Acetonitriles) RN - 0 (Halogenated Diphenyl Ethers) RN - 0 (Solvents) RN - 0 (Water Pollutants, Chemical) RN - 451W47IQ8X (Sodium Chloride) SB - IM MH - Acetonitriles/chemistry MH - Chromatography, Gas MH - Fresh Water/chemistry MH - Halogenated Diphenyl Ethers/*analysis MH - Medicago/chemistry MH - Osmolar Concentration MH - Reproducibility of Results MH - Seawater/chemistry MH - Sensitivity and Specificity MH - Sodium Chloride/chemistry MH - Solid Phase Extraction/*methods MH - Solvents/chemistry MH - Water Pollutants, Chemical/*analysis/chemistry EDAT- 2009/01/27 09:00 MHDA- 2009/08/14 09:00 CRDT- 2009/01/27 09:00 PHST- 2008/10/17 00:00 [received] PHST- 2008/12/16 00:00 [revised] PHST- 2008/12/31 00:00 [accepted] PHST- 2009/01/27 09:00 [entrez] PHST- 2009/01/27 09:00 [pubmed] PHST- 2009/08/14 09:00 [medline] AID - S0021-9673(09)00018-1 [pii] AID - 10.1016/j.chroma.2008.12.092 [doi] PST - ppublish SO - J Chromatogr A. 2009 Mar 20;1216(12):2220-6. doi: 10.1016/j.chroma.2008.12.092. Epub 2009 Jan 9.