Health & Environmental Research Online (HERO)


Print Feedback Export to File
606379 
Journal Article 
Quantitative 1H NMR-analysis of technical octabrominated diphenylether DE-79â„¢ and UV spectra of its components and photolytic transformation products 
Geller, AM; Krüger, HU; Liu, Q; Zetzsch, C; Elend, M; Preiss, A 
2008 
Yes 
Chemosphere
ISSN: 0045-6535
EISSN: 1879-1298 
73 
1 
S44-S52 
English 
18445501 
A quantitative analysis of the technical octabromo diphenylether mixture DE-79â„¢ is performed by 1H NMR, avoiding any separation technique. The mass fractions are 36% BDE183, 19% BDE197, 13.1% BDE207, 9.1% BDE196, 7.3% BDE153, 6.2% BDE203, 2.2% BDE180, 1.6% BDE171, 1.2% BDE154 and 0.7% BDE206, considering an additional mass fraction of 1.3% BDE209 determined by HPLC analysis with a diode array detector (DAD). HPLC chromatograms of the BDEs in commercial decaBDE, octaBDE DE-79â„¢ and pentaBDE DE-71â„¢ and UV spectra of the components of DE-79â„¢ are presented. The photolysis of the octaBDE mixture DE-79â„¢, dissolved in tetrahydrofuran, by simulated sunlight is monitored by HPLC-DAD and observed to proceed mainly via debromination. Polybrominated dibenzofurans are identified from their UV spectra as significant intermediates. [Copyright 2008 Elsevier] Copyright of Chemosphere is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts) 
POLYBROMINATED diphenyl ethers; NUCLEAR magnetic resonance spectroscopy; HIGH performance liquid chromatography; DIODES; DETECTORS; ULTRAVIOLET radiation; PHOTOCHEMISTRY; INTERMEDIATES (Chemistry); POLYCHLORINATED dibenzofurans; ORGANOBROMINE compounds