| Autor: |
Said Eddarir, Zohra Bouberka, Ulrich Maschke, Yassine Agguine, Abdelouahab Nadim |
| Rok vydání: |
2015 |
| Předmět: |
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| Zdroj: |
Encyclopedia of Analytical Chemistry |
| Popis: |
This study presents new aspects in photochemical degradation of Tetrabromobisphenol A bis (2,3-dibromopropylether) (TBBPA-DBPE). The reaction kinetics were followed in particular by high performance liquid chromatography (HPLC) as well as by ultraviolet-visible spectroscopy, and the byproducts of degradation were characterized using gas chromatography coupled with mass spectrometry (GC-MS). A good agreement was obtained from the results of different analytical methods in terms of the overall conversion of TBBPA-DBPE and the corresponding rate. The obtained results show that the photodegradation of TBBPA-DBPE can be described by pseudo-first-order kinetics. It is interesting to mention a strong presence of a large number of low molecular weight molecules, which proves the efficiency of the radiative treatment, as these products contain only a low amount of bromine. Keywords: photolysis; kinetics; UV-visible radiation; polybrominated molecules; UV-visible spectroscopy; HPLC ; GC ; MS |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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