|
(154) Analysis of bis(4-chlorophenyl)sulfone (BCPS) in the Swedish biota with a new analytical method. Ceder, Karin1, Olsson, A.1, Olsson, M.2, Bergman, A.1, 1 2 ABSTRACT- Bis(4-chlorophenyl)sulfone (BCPS) is one of the most recent detected halogenated organic substances in the environment. It was reported for the first time in 1995 in perch from the Baltic environment. The concentrations were in the same level as those of 2,2',3,4,4',5'-hexachlorobiphenyl (CB-138), one of the most persistent PCBs. Data on white-tailed sea eagle eggs have later shown a clear increase in concentrations during the last decades. BCPS is a commercially produced compound that is mainly used in the production of thermostable plastics. Since BCPS has been reported in the environment around the world and the demand for high temperature plastics is increasing, it is important to collect data on the distribution of BCPS and also to see if, and to what degree BCPS biomagnifies in biota. Therefore, a simple method for analysis of BCPS has been worked out. The method is based on the removal of the extracted lipids by hydrolysis with potassium hydroxide in ethanol. The samples are further cleaned up in a series of columns with silica gel, impregnated with sulphuric acid. Finally, the samples are analysed on GC-ECD. The method has shown good reproductibility. MeSO2-PCB can also be analysed with this method. To study the distribution of BCPS in the Swedish environment and the distribution between different fish species, samples have been collected from different areas of Sweden. The same species of fish from the 70ies and the 90ies have also been collected to study the potential of BCPS to biomagnify. Key words: bis(4-chlorophenyl)sulfone, BCPS, analytical method |
