EPA Method 601 Internal Standard Back Catalog number: 19094 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 676979 D7-Atenolol, 100 µg/ml, Acetonitrile, 1ml Price on request 59955 Bromate (BrO3-) Price on request 71250 Omethoate, 1000µg/ml in MeOH, 1ml Price on request