Terbufos-sulfoxide, 100 µg/ml, Acetonitrile, 1ml

2,3,5,6-Tetrabromo-p-xylene, 1.2ml x 50ug/ml , toluene

2,4,4'-Trichlorodiphenyl ether, 1.2ml x 50ug/ml, nonane

PCB 99, 5mg