EPA Method 8240A Internal Standard Back Catalog number: 22003 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 79358 4,4’-Dichlorobenzophenone Price on request 9224.15-100MG Carbamazepine, neat, Solvent-neat, Unit 100mg, # of units-, Cas.no. 298-46-4 Price on request 23005 Acid Surrogate Standard Price on request