Mix #1 Back Catalog number: 50227 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 677817 Ethoprophos, 100 µg/ml, Acetonitrile, 1ml Price on request DFP-IS-B10 Mass-Labelled PCDD & PCB Internal Standard Solution, 1.2ml, nonane Price on request 3504.6-100-AN Tecnazene Price on request