EPA Method 353.2 Nitrate & Nitrite Back Catalog number: 52120 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 679868 Tris(2-ethylhexyl) phosphate, 100µg/ml, MeOH, 5ml Price on request 79206 Disulfoton Price on request 2805.11-100-IO 4-Methyl-1-naphthol, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 10240-08-1 Price on request