PSA-C18-Mix 6 Back Catalog number: 674789 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 57001 Perchlorate (ClO4-), 1000µg/ml in Water, 100ml Price on request 58129 Copper (Cu) Price on request 2483.10-100-CY Dinoterb Price on request