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Title: A fluorescence-based method for rapid and direct determination of polybrominated diphenyl ethers in water

Journal Article · · Journal of Analytical Methods in Chemistry
DOI:https://doi.org/10.1155/2015/853085· OSTI ID:1184954
 [1];  [1];  [2];  [3];  [2];  [2]
  1. China Univ. of Geosciences, Wuhan (China). Lab of Basin and Wetland Eco-Restoration; Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  2. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  3. China Univ. of Geosciences, Wuhan (China). Lab of Basin and Wetland Eco-Restoration and State Key Lab. of Biogeology and Environmental Geology

A new method was developed for rapid and direct measurement of polybrominated diphenyl ethers (PBDEs) in aqueous samples using fluorescence spectroscopy. The fluorescence spectra of tri- to deca-BDE (BDE 28, 47, 99, 153, 190, and 209) commonly found in environment were measured at variable emission and excitation wavelengths. The results revealed that the PBDEs have distinct fluorescence spectral profiles and peak positions that can be exploited to identify these species and determine their concentrations in aqueous solutions. The detection limits as determined in deionized water spiked with PBDEs are 1.71-5.82 ng/L for BDE 28, BDE 47, BDE 190, and BDE 209 and 45.55–69.95 ng/L for BDE 99 and BDE 153. The effects of environmental variables including pH, humic substance, and groundwater chemical composition on PBDEs measurements were also investigated. These environmental variables affected fluorescence intensity, but their effect can be corrected through linear additivity and separation of spectral signal contribution. Compared with conventional GC-based analytical methods, the fluorescence spectroscopy method is more efficient as it only uses a small amount of samples (2-4 mL), avoids lengthy complicated concentration and extraction steps, and has a low detection limit of a few ng/L.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
Grant/Contract Number:
AC05-76RL01830; 41372252
OSTI ID:
1184954
Report Number(s):
PNNL-SA-99694; KP1603000
Journal Information:
Journal of Analytical Methods in Chemistry, Vol. 2015; ISSN 2090-8865
Publisher:
HindawiCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 3 works
Citation information provided by
Web of Science

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