Lake Michigan Study Solutions of single reference substances KIT: 9 compounds, 10 µg/mL each in isooctane Chiron No. Compound PBDE No. Conc. 1961.12-50-IO 2,4,4’-Tribromodiphenyl ether PBDE-28 50 µg/mL 1962.12-50-IO 2,2’,4,4’-Tetrabromodiphenyl ether