12mL Cartridge w/1g SPE Amide-2, 20/pk Back Catalog number: 4827 Availability: In the manufacturer's stock Price on request - + Recommended 730061 Chromab. columns CN, 1mL, 100mg 213,72 € 731769 Chromafix HR-XA (M) 260,69 € 12102099 Bond Elut C18, 100mg 3ml, 50/pk 141,35 €