Atrazine-desisopropyl, 100 µg/ml, Acetonitrile,

n-Hentriacontane, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 630-04-6

1,4,5-Trichloro(13C10)naphthalene, 1.2mL x 50ug/mL, nonane

EPA Method 528 Fortification Solution