Atrazine, 100 µg/ml, Ethyl acetate, 5ml

2,4,4’-Tribromodiphenyl ether, 50µg/ml in IO, 1ml

(13C12)Isodrin, 1.2mL x 100ug/mL, nonane

Pentachloronitrobenzene, 100ug/ml, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 82-68-8