Picric acid, 100 µg/ml, Acetonitrile, 10ml

D7-Atrazine-desethyl, 10mg

1,2,3,4-Tetrachlorodibenzo-p-dioxin, 50µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 30746-58-8

EPA Method 507 Nitrogen Phosphorus Pesticides