EPA Method 502.2 Internal Standard

Nortriptyline hydrochloride, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 894-71-3

Di-n-propyltin dichloride

Haloxyfop-P-methyl, 10.0 µg/ml, Acetonitrile, 10