EPA Method 531.1 - Analytes Back Catalog number: 30042 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3404.9-100-AN Fenuron Price on request 680614 Dibutyl maleate, 250mg Price on request 13768.9-K-ME Lamotrigine-13C3,d3, Major, 1000µg/ml in MeOH, 1ml Price on request