4-Nitrophenol, 100 µg/ml, Acetonitrile, 1ml

Benz[a]anthracene-d12, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-10, Cas.no. 1718-53-2

Atrazine Mercapturate, 5mg

Phenanthrene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 85-01-8