EPA Method 502/524 Fortification Solution

2,6-Dichlorobenzonitrile, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 1194-65-6

Phenmedipham, 100µg/ml in MeOH, 5ml

D4-Methanol, 100 µg/ml, Acetonitrile, 1ml