Copper (Cu) - 1 PPM Back Catalog number: 50590 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 15900-3355-100AN5 Metribuzin-desamino, 100µg/ml in Acetonitrile, 5ml Price on request 676967 Bronopol, 250mg Price on request 680040 Diclofenac Impurity B, 10mg Price on request