EPA Method 353.2 Nitrate & Nitrite Back Catalog number: 52120 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2383.6-K-IP 4-Bromophenol, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 106-41-2 Price on request 3756.20-K-IO Alverine (free base), 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 150-59-4 Price on request 98096 Tetrachloro-m-xylene Internal Standard Price on request