Polybrominated diphenyl ethers (BDEs); preparation of reference standards and fluorinated internal analytical standards
作者:Huiling Liu、Monica Bernhardsen、Anne Fiksdahl
DOI:10.1016/j.tet.2006.01.092
日期:2006.4
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-
四个新的二氟化四-和五溴用于GC-MS / GC-ECD分析BDE内部标准,2F - BDE 47,2F - BDE 85,2F - BDE 99和2F - BDE 119,已经在纯度98-99.0%制备主要由新tribromodifluorophenols(耦合19 - 21)和对称bromodiphenyliodonium盐(8,22)。四种二氟化BDEs作为定量BDE分析的内标物显示出令人鼓舞的特性。四溴,五溴,六溴和七溴BDE参考标准品,BDE 75,BDE 85,BDE 138和BDE 183的纯度也达到98.4%至99.8%。