EPA Method 548.1 Analyte Back Catalog number: 30077 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 59119 Fluoride (F-) Price on request 676135 Propachlor OA, 100 µg/ml, Acetonitrile, 1ml Price on request 684544 2-Phenylphenolate sodium tetrahydrate (technical), Price on request