EPA Method 353.2 Nitrate + Nitrite Back Catalog number: 53120 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 50827 ICP-MS Mix Price on request 2746.12-50-IO 3'-Fluoro-2,3,4,4',5,6-hexachlorobiphenyl, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. Price on request 53137 ICP-MS Solution Kit Price on request