Internal Standard Stock Solution, 1.2ml, nonane Back Catalog number: EPA-1668IS Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 675665 Sulfentrazone, 100 µg/ml, Ethyl acetate, 5ml Price on request DFP-LCS-A Mass-Labelled PCDD/PCDF/PCB Solution/Mixture, 1.2ml, nonane Price on request 679672 13C6-Diclofenac sodium hydrate, 10mg Price on request