Retention Time Verification Standard Back Catalog number: 51136 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 679249 Isoxaben, 100mg Price on request 98313 Denatured Fuel Ethanol Calibration Level 6 Price on request FPRPA 3-Perfluoropropyl propanoic acid (3:3), 50µg/ml in MeOH, 1,2ml Price on request