2,4-DB-methyl ester, 10.0 µg/ml, Ethyl acetate,

EPA Method 1664 - Oil & Grease (Sonicate)

3,3'-Dimethoxybenzidine,100 µg/mL,acetonitrile,1mL,

Malaoxon, 100 µg/ml, Acetonitrile, 5ml