Cation Mix #2 Back Catalog number: 59384 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 83600 EPA Method 555 Herbicide Standard Price on request 675397 Chlorpyrifos, 100 µg/ml, Acetonitrile, 5ml Price on request 2124.12-100-IO Arochlor 1016 , 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 12674-11-2 Price on request