2,4'-DDE, 100 µg/ml, Ethyl acetate, 5ml Back Catalog number: 673532 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended DF-IS-A Mass-Labelled PCDD Internal Standard Solution, 1.2ml x 1ug/ml, nonane Price on request 685006 D10-Benzophenone, 10mg Price on request DF-B10-CS5-11 Individual Calibration Solutions, 200uL, nonane Price on request