EPA Method 8330 Analyte Back Catalog number: 79250 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678271 Carbophenothion, 100 µg/ml, Acetonitrile, 5ml Price on request 71987 2-Bromo-2-nitro-1,3-propanediol Price on request 679332 2-Methylbenzophenone, 250mg Price on request