Atrazine-d5 (ethyl-d5),1000 µg/mL,acetonitrile,1mL,

Ammonia as (NH4+)

2-Nitroanisole, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 91-23-6

Dibenz[a,j]anthracene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 224-41-9