EPA Method 353.2 Nitrate & Nitrite

1,2,5-Trimethylnaphthalene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 641-91-8

5-(Hydroxymethyl)cytosine, 10mg

Bis(4-methyl-2-pentyl) phthalate-3,4,5,6-d4, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1398066-13-1