Multi-Element Calibration Standard-4 Back Catalog number: 50013 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678110 Isoxadifen-ethyl, 100 µg/ml, Acetonitrile, 1ml Price on request 59259 Copper (Cu) Price on request 10113.18-50-IO 1,9-Dimethyl-7-ethylphenanthrene, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 46870-52-4 Price on request