Atrazine, 100 µg/ml, Acetonitrile, 5ml

n-Hexacosane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 630-01-3

(-)-Nicotine ditartrate, >99%, (CAS 65-31-6), 10g

EPA Method 525 Surrogate Standard