Atrazin, 100μg/ml in Acetonitrile, 5ml

Toxaphene Congeners (Parlar 26, 50 and 62), 2µg/ml in Nonane, 1,2ml

2,3,3',4',5,6-Hexachlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 74472-44-9

(-)-Noscapine,10 µg/mL,MeOH,1mL,