Copper (Cu) - 2 PPM Back Catalog number: 50591 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 679800 Norfloxacin, 100 µg/ml, Methanol, 1ml Price on request PCB-IS-C20 Mass-Labelled PCB Syringe Spike Solution, 1.2ml, nonane Price on request 59493 Metals Mix Price on request