EPA Method 531.1 Individual Analytes Back Catalog number: 31241 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 684122 Benzofenap, 100 µg/ml, Cyclohexane, 1ml Price on request 0262.20-100-AN Benzo[a]fluoranthene,100 µg/mL,acetonitrile,1mL, Price on request 679853 Meropenem trihydrate, 25mg Price on request