Multi-Element Internal Std., 10ug/ml, 4x25ml Back Catalog number: 52319 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 678109 Isoxadifen-ethyl, 10.0 µg/ml, Acetonitrile, 10ml Price on request 70890 Bromoacetic acid Price on request 79411 2,4-D, butoxyethanol ester Price on request