Geller, A.-M.A.-M.GellerKrüger, H.-U.H.-U.KrügerLiu, Q.Q.LiuZetzsch, C.C.ZetzschElend, M.M.ElendPreiss, A.A.Preiss2022-03-042022-03-042008https://publica.fraunhofer.de/handle/publica/21647910.1016/j.chemosphere.2007.02.070A quantitative analysis of the technical octabromo diphenylether mixture DE-79 (TM) is performed by H-1 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-79 (TM) and pentaBDE DE-71 (TM) and UV spectra of the components of DE-79 (TM) are presented. The photolysis of the octaBDE mixture DE-79 (TM), 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.enphotolysisDE-79TMDE-71TMBDFhigh performance liquid chromatographynuclear magnetic resonance spectroscopy610615journal article