Atrazine, 100 µg/ml, Acetonitrile, 5ml

EPA 552.2- Haloacetic Acids, 100µg/ml in MTBE, 1ml

Naltrexone (base, anhydrous), neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 16590-41-3

PCB 108, 5mg