PCN Potentially Toxic Congeners Solution/Mixture, 1.2ml, nonane

2,2',4,4',5,5'-Hexachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

4-Chloro-2-methylaniline, 10 µg/ml, Acetonitrile,

EPA Method 507 Nitrogen Phosphorus Pesticides