EPA Method 508 - Performance Check Solution Back Catalog number: 19132 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1487.20-10UG Phenanthryl-9-O-glucuronide, neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no. 177194-36-4 Price on request 82423 EPA Method 8240A Mix #3 Price on request 680040 Diclofenac Impurity B, 10mg Price on request