EPA Method 8260B Internal Standard Back Catalog number: 22213 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended M8FOSA-I Perfluoro-1-[13C8]octanesulfonamide, 50µg/ml in Isopropanol, 1,2ml Price on request 59294 Acid Mix Price on request 0214.22-200-T Benzo[b]chrysene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 214-17-5 Price on request