EPA Method 551.1 Performance Check Soln Back Catalog number: 30114 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678542 Alachlor, 100 µg/ml, Acetonitrile, 5ml Price on request 9318.10-100-AN Clofibric-d4 acid, 100µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 1184991-14-7 Price on request 8653.14-100-NN 4,4'-DDE-13C12 Price on request