Tetrabromobisphenol-A TBBP

Carignan CC, Abdallah MA-E, Wu N et al (2012) Predictors of tetrabromobisphenol-A (TBBP-A) and hexabromocyclododecanes (HBCD) in milk from Boston mothers. Environ Sci Technol 46(21) 12146-12153... 

TBBA, TBBP-A Tetrabromobisphenol-A TNPP Tris (nonylphenyl) phosphite... 

ESIS (2006) Summary risk assessment report on 2,2 ,6,6 -tetrabromo-4,4 -isopropylidene diphenol (tetrabromobisphenol-A or TBBP-A) Part II - Human Health 2006. http //esis.jrc. ec.europa.eu... 

The importance of adequate support by database reference material is well illustrated with the following case. After chromatographic separation (TLC, CC), the combination of >H/13C NMR, DI-MS (El), FTIR and HPLC (IJV/VIS, DAD and MS) a flame retardant in a Japanese polypropylene TV cabinet on the European market was identified as tetrabromobisphenol-,S -bis-(2,3-dibromopropyl ether) (TBBP-S) [168]. The result was verified by synthesis of reference material the product was finally identified as Non Nen 52 from Marubishi Oil Chemical Co., Ltd (Osaka), not registered in any spectral database. 

PyGC-MS enables differentiation between various brominated flame retardants. Pyrograms of the reference materials (pure FRs) need to be compared with that of the sample to be examined in order to identify the flame retardant class. Selection of the pyrolysis temperature is most important. A compromise between mobilisation of the flame retardants and minimisation of thermal reaction products has to be found. Flame retardants were identified in EPR/TBBA, ABS/TBBA, PBT/TBBA, PP/PBDE, HIPS/PBB, using an optimised pyrolysis temperature (430°C) for these systems [791]. PyGC-MS was also used for polymer and additive (FR) characterisation of a Japanese TV cabinet [792]. Figure 2.36 shows the additive fragments isolated, together with a proposed (sub)structure, sufficient to identify the flame retardant as tetrabromobisphenol-5 -bis-(2,3-dibromopropylether) (TBBP-S) on the basis of patent search. 

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