EPA Method 353.2 Nitrate & Nitrite Back Catalog number: 52120 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1538.18-K-T Triphenylene-d12, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 17777-56-9 Price on request 59921 ICP-MS Mix Price on request MDF-123678 1,2,3,6,7,8-Hexachloro[13C12]dibenzofuran, 1.2ml x 50ug/ml, toluene Price on request