Sulfamethazine, 100 µg/ml, Methanol, 1ml

Aminomethyl phosphonic acid, 100 ng/µl, 1ml

2,3,5,6-Tetrachlorophenol, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 935-95-5

EPA Method 500 Internal Standard #6