EPA Method 353.2 Nitrate + Nitrite

Erbium Oxide (Er2O3)

2-Methylheptadecane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1560-89-0

2,3,9,10-Tetramethylantracene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 66552-77-0