Polybrominated diphenyl ethers (BDEs); preparation of reference standards and fluorinated internal analytical standards |
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| Authors: | Huiling Liu Anne Fiksdahl |
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| Institution: | a Chiron AS, Stiklestadveien 1, NO-7041 Trondheim, Norway
b Department of Chemistry, Norwegian University of Science and Technology, Sem Sælands v. 8, NTNU, NO-7491 Trondheim, Norway |
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| Abstract: | Four new difluorinated tetra- and pentabromo BDE internal standards for GC-MS/GC-ECD analysis, 2F-BDE47, 2F-BDE85, 2F-BDE99 and 2F-BDE119, have been prepared in 98-99.0% purity, mainly by coupling of the new tribromodifluorophenols (19-21) and symmetrical bromodiphenyliodonium salts (8, 22). The four difluorinated BDEs showed promising properties as internal standards for quantitative BDE analysis. Tetra-, penta-, hexa- and hepta-brominated BDE reference standards, BDE75, BDE85, BDE138 and BDE183, were also prepared in 98.4-99.8% purity and characterised. |
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| Keywords: | Polybrominated diphenyl ethers BDE Flame retardants Fluorinated BDE 2F-BDE Internal standard Analytical standard Synthesis |
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