EPA Method 505 Analytes Back Catalog number: 93821 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 59258 Copper (Cu) Price on request 18000-1825-100ME5 Sulfanilamide, 100µg/ml in MeOH, 5ml Price on request 676697 Quinoxyfen, 100 µg/ml, Acetonitrile, 1ml Price on request