EPA Method 531.1 - Analytes Mixture Back Catalog number: 33042R Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 73060 Fentanyl Price on request 59248 ICP-MS Standard 3 Price on request 9279.23-10MG Pravastatin sodium, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 81131-70-6 Price on request