EPA Method 507 Analyte Mix #1 Back Catalog number: 30182 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended FOSA-I Perfluoro-1-octanesulfonamide , 1.2ml x 50ug/ml, isopropanol Price on request 675978 Primisulfuron-methyl, 10.0 µg/ml, Acetonitrile, Price on request 678661 S-Metolachlor Metabolite CGA 368208, 100 µg/ml, M Price on request