2,4'-DDE, 100 µg/ml, Acetonitrile, 5ml Back Catalog number: 678379 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 31056 EPA Method 552.1 - Surrogate Standard Price on request 679180 Tinidazole, 10mg Price on request EPA-8280CC1,2,4,5 Individual Calibration Solutions , 500ul, nonane Price on request