EPA Method 548.1 Analyte Back Catalog number: 30077 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 680352 Oxyclozanide, 100mg Price on request 83552 Isophorone-DNPH Price on request 18000-1810-100AN5 Metformin-HCl, 100µg/ml in Acetonitrile, 5ml Price on request