EPA Method 353.2 Nitrate + Nitrite

Metoprolol-d7 hydrochloride (isopropyl-d7), 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 1219798-61-4

Dicamba-methyl ester, 100 µg/ml, Hexane, 1ml

5-Methyl-2-naphthol, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 66256-29-9