Sodium (Na) Back Catalog number: 57711 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 31102 EPA Method 551.1 Surrogate Standard Price on request MDF-123678 1,2,3,6,7,8-Hexachloro[13C12]dibenzofuran, 1.2ml x 50ug/ml, toluene Price on request 678965 Pyrene, 100 µg/ml, Cyclohexane, 1ml Price on request