Profluralin, 10.0 µg/ml, Ethyl acetate, 10ml

S-Metolachlor Metabolite CGA 50720

Fenchlorphos-oxon, 10µg/ml in Acetonitrile, 10ml

2,3,3',5-Tetrachlorobiphenyl,100 µg/mL,isooctane,1mL,