PSA-C18-Mix 12 Back Catalog number: 674744 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 59472 ICP-MS Verification Standard #1 Price on request 59036 Lithium 6 (Li6) Price on request C12197600 2,4-Diaminotoluene, 250mg Price on request