PCB No. 77, 10µg/ml in Isooctane, 10ml

2,2',3,4,4',5',6-Heptabromo[13C12]diphenyl ether, 1.2ml x 50ug/ml, nonane

Cyanazine, 10 µg/ml, Ethyl acetate, 10ml

2-n-Nonylphenol-di-ethoxylate, 100 µg/ml, Acetone