Four brominated bisphenol A/S and its derivatives are the most widely used 

brominated flame retardants, which are widely used in electronic appliances, 

paint, textiles and other daily necessities. In the process of production and 

use, they can enter the environment through a variety of ways and accumulate

 in various media and become widely used as contaminants. With the increasing

 use of such compounds, the environmental and health hazards caused by them

 will become an important environmental problem that can not be ignored.

The Jiang Guibin research group, the Jiang Guibin research group of the State 

Key Laboratory of environmental chemistry and ecotoxicology, the Academy of 

ecological environment of the Chinese Academy of Sciences has studied the 

brominated flame retardants of the four brominated bisphenol A/S since 2010.

 The research group has developed a new analytical method based on electrospray

 extraction and ionization technology, solid phase microextraction and high 

resolution mass spectrometry. It is used in the analysis of four bromo bisphenol 

A/S derivatives and by-products in the environment. The sensitivity and selectivity 

of the derivative detection are improved, and the unknown brominated pollutants 

in the complex environment medium are realized. Non target recognition provides

 the necessary technical means for the environmental behavior and environmental 

fate research of such pollutants.  Relevant research achievements have published 

a series of research papers and published a summary.

Through the analysis of the actual environmental samples, 8 kinds of TBBPA/S 

by-products were identified and identified for the first time in soil, sediment, 

river water, sea water and marine organisms, and the structure of these by-products

 was further revealed through the synthesis of standard chemicals. The analysis 

of biological samples in Bohai showed that the TBBPA/S side products mainly 

howed the trend of dilution of food chain, which was more harmful to lower 

organisms. Cytotoxicity evaluation experiments showed that TBBPA/S derivatives 

and by-products had higher neurotoxicity. Relevant research results have been 

published in Environmental Science and technology.Recently, by studying the 

molecular transformation of TBBPA under anaerobic conditions, 10 kinds of TBBPA

 derivatives related transformation products were found and identified, of which

 6 kinds of brominated pollutants were reported for the first time. This study will 

provide important data support for environmental fate of TBBPA derivatives and 

comprehensive evaluation of environmental risks of TBBPA brominated flame retardants.

 The research results have been in "environmental science and technology"

Molecular transformation process diagram of TBBPA-MDBPE