EPA Method 604.1 Analytes Back Catalog number: 40004 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678023 D5-Enrofloxacin hydrochloride, 10mg Price on request 675090 Mecoprop, 100 µg/ml, Acetonitrile, 5ml Price on request 676771 Benzidine, 100mg Price on request