EPA Method 502/524 Surrogate Standard #2

(-)-Cannabidiol (Synthetic), 10mg

1-Methyl-4-nitronaphthalene, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 880-93-9

Chlorfenvinphos, 10.0 µg/ml, Ethyl acetate, 10ml