Copper (Cu) - 1 PPM Back Catalog number: 50590 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3654.40-1MG Zeaxanthin, neat, Solvent-neat, Unit 1mg, # of units-1, Cas.no. 144-68-3 Price on request 675802 Azodyes-Mix 6, 10µg/ml in Acetonitrile, 1ml Price on request 53330 EPA Method 200.8 - Analytes Price on request