EPA Method 525.2 - 526 Internal Standard

Clopyralid, 250mg

9-Ethylfluorene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 2294-82-8

Methidathion, 10.0 µg/ml, Acetonitrile, 10ml