EPA Method 353.2 Nitrate & Nitrite Back Catalog number: 52120 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 677561 3-(4-Methylbenzylidene)camphor, 250mg Price on request 8802.6-50-ME 1H,1,H,2H,2,H-Perfluorohexan-1-ol (2-Perfluorobutyl ethanol), 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 2043-47-2 Price on request 679088 2,4'-Methoxychlor, 10mg Price on request