EPA Method 353.2 Nitrate & Nitrite Back Catalog number: 52120 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended P206500-5MG Patulin, >98%, 5mg Price on request 2420.6-K-IP 2-Chlorophenol-3,4,5,6-d4,1000 µg/mL,isopropanol,1mL, Price on request 2543.20-K-ME Amitriptyline hydrochloride, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 549-18-8 Price on request