PMID- 18440368
OWN - NLM
STAT- MEDLINE
DCOM- 20080710
LR  - 20151119
IS  - 1873-4324 (Electronic)
IS  - 0003-2670 (Linking)
VI  - 615
IP  - 1
DP  - 2008 May 12
TI  - Dispersive liquid-liquid microextraction followed by reversed phase-high 
      performance liquid chromatography for the determination of polybrominated 
      diphenyl ethers at trace levels in landfill leachate and environmental water 
      samples.
PG  - 96-103
LID - 10.1016/j.aca.2008.03.038 [doi]
AB  - A simple, rapid and efficient method, dispersive liquid-liquid microextraction 
      (DLLME), has been developed for the extraction and preconcentration of 
      polybrominated diphenyl ethers (PBDEs) in water samples. The factors influencing 
      microextraction efficiencies, such as the kind and volume of extraction and 
      dispersive solvent, the extraction time and the salt effect, were optimized. 
      Under the optimum conditions (sample volume: 5 mL; extraction solvent: 
      tetrachloroethane, 20.0 microL; dispersive solvent: acetonitrile, 1.00 mL; 
      extraction time: below 5s and without salt addition), the enrichment factors and 
      extraction recoveries were high and ranged from 268 to 305 and 87.0 to 119.1%, 
      respectively. Linearity was observed in the range 0.05-50 ng mL(-1) for BDE-28 
      and BDE-99, and 0.1-100 ng mL(-1) for BDE-47 and BDE-209, respectively. 
      Coefficients of correlation (r(2)) ranged from 0.9995 to 0.9999. The 
      repeatability study was carried out by extracting the spiked water samples at 
      concentration levels of 50 ng mL(-1) for BDE-28 and BDE-99, and 100 ng mL(-1) for 
      BDE-47 and BDE-209, respectively. The relative standard deviations (R.S.D.s) 
      varied between 3.8 and 6.3% (n=5). The limits of detection (LODs), based on 
      signal-to-noise ratio (S/N) of 3, ranged from 12.4 to 55.6 pg mL(-1) (the 
      wavelength of detector at 226 nm). The relative recoveries of PBDEs from tap, 
      lake water and landfill leachate samples at spiking levels of 5, 10 and 50 ng 
      mL(-1) were in the range of 89.7-107.6%, 114.3-119.1% and 87.0-90.9%, 
      respectively. As a result, this method can be successfully applied for the 
      determination of PBDEs in landfill leachate and environmental water samples.
FAU - Li, Yanyan
AU  - Li Y
AD  - School of Environmental Science and Public Health, Wenzhou Medical College, 
      Wenzhou 325035, China.
FAU - Wei, Guohui
AU  - Wei G
FAU - Hu, Jia
AU  - Hu J
FAU - Liu, Xiujuan
AU  - Liu X
FAU - Zhao, Xinna
AU  - Zhao X
FAU - Wang, Xuedong
AU  - Wang X
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20080327
PL  - Netherlands
TA  - Anal Chim Acta
JT  - Analytica chimica acta
JID - 0370534
RN  - 0 (Ethers)
RN  - 0 (Polybrominated Biphenyls)
RN  - 0 (Solvents)
RN  - 0 (Trace Elements)
RN  - 0 (Water Pollutants, Chemical)
RN  - 451W47IQ8X (Sodium Chloride)
SB  - IM
MH  - Chromatography, High Pressure Liquid/instrumentation/*methods
MH  - Environmental Monitoring/methods
MH  - Ethers/*analysis
MH  - Phase Transition
MH  - Polybrominated Biphenyls/*analysis
MH  - Sensitivity and Specificity
MH  - Sodium Chloride/chemistry
MH  - Solubility
MH  - Solvents/chemistry
MH  - Time Factors
MH  - Trace Elements/*analysis
MH  - Waste Disposal, Fluid
MH  - Water Pollutants, Chemical/*analysis
EDAT- 2008/04/29 09:00
MHDA- 2008/07/11 09:00
CRDT- 2008/04/29 09:00
PHST- 2008/01/21 00:00 [received]
PHST- 2008/03/17 00:00 [revised]
PHST- 2008/03/20 00:00 [accepted]
PHST- 2008/04/29 09:00 [pubmed]
PHST- 2008/07/11 09:00 [medline]
PHST- 2008/04/29 09:00 [entrez]
AID - S0003-2670(08)00560-6 [pii]
AID - 10.1016/j.aca.2008.03.038 [doi]
PST - ppublish
SO  - Anal Chim Acta. 2008 May 12;615(1):96-103. doi: 10.1016/j.aca.2008.03.038. Epub 
      2008 Mar 27.