Determination of Select Polybrominated Diphenyl Ethers and Methoxylated Polybrominated Diphenyl Ethers in Sediment Cores from Two Inland Lakes in Michigan PDF Download
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Author: Patrick William Bradley
Publisher:
ISBN:
Category : Polybrominated diphenyl ethers
Languages : en
Pages : 192
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Book Description
Author: Patrick William Bradley
Publisher:
ISBN:
Category : Polybrominated diphenyl ethers
Languages : en
Pages : 192
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Book Description
Author: L. Webster
Publisher:
ISBN: 9788774820758
Category : Chemical oceanography
Languages : en
Pages : 0
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Book Description
Author: K. L. Kimbrough
Publisher:
ISBN:
Category : Bivalves
Languages : en
Pages : 96
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Book Description
This report represents the first national assessment of PBDEs in the U.S. coastal zone. Results suggest that they are widely distributed nationally. Several regions, including the northern Mid-Atlantic, central Gulf of Mexico, Southern California, Pacific Northwest and the Great lakes have elevated PBDE concentrations compared with other coastal regions. Furthermore, PBDE concentrations are positively correlated with human population density along the U.S. coastline. The national and regional perspectives provided herein are intended to support research, local monitoring, and to assist resource managers and policy makers tasked with making regulatory decisions about these contaminants.
Author: Canada. Environment Canada
Publisher:
ISBN: 9781100124032
Category : Polybrominated diphenyl ethers
Languages : en
Pages : 8
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Book Description
Author: Anna Palm
Publisher: Nordic Council of Ministers
ISBN: 928931074X
Category : Nature
Languages : en
Pages : 81
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Book Description
Author:
Publisher:
ISBN:
Category : Diphenyl ethers
Languages : en
Pages : 628
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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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.
Author: Yin-Ming Kuo
Publisher:
ISBN:
Category : Aquatic organisms
Languages : en
Pages : 126
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Book Description
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Author: Petra Novak (kemičarka.)
Publisher:
ISBN:
Category :
Languages : en
Pages : 83
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Book Description
Author: Johanna Peltola
Publisher: Nordic Council of Ministers
ISBN: 9789289306904
Category : Environmental toxicology
Languages : en
Pages : 84
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Book Description
