Abstract：
:A method was developed to study reductive transformation of highly brominated diphenyl ethers (BDEs). The method development is a part of a broader project where it will be used to determine the susceptibility of environmental pollutants to reductive conditions, in an attempt to create a scheme for determination of chemical's persistence. This paper focuses on identification of octabrominated diphenyl ether transformation products from reductive debromination of the three nonabrominated diphenyl congeners (nonaBDE), BDE-206, -207 and -208. Sodium borohydride was used to explore the reductive debromination of the nonaBDEs. The transformation products were collected at two time-points and identified products were quantified by GC-MS. The reduction of the nonaBDEs lead primarily to debrominated products, mainly octaBDEs. The three nonabrominated DEs gave isomer-related transformation product patterns. BDE-207 and BDE-208 showed a propensity for ortho-debromination in the initial reaction step, while no discrimination between initial debromination positions was seen for BDE-206. All three nonabrominated DEs displayed a preferred initial debromination on the fully brominated DE ring.
journal_name
Chemospherejournal_title
Chemosphereauthors
Granelli L,Eriksson J,Athanasiadou M,Bergman Ådoi
10.1016/j.chemosphere.2010.11.022subject
Has Abstractpub_date
2011-02-01 00:00:00pages
839-46issue
6eissn
0045-6535issn
1879-1298pii
S0045-6535(10)01304-4journal_volume
82pub_type
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