12mL Cartridge w/1g SPE Amide-2, 20/pk Back Catalog number: 4827 Availability: In the manufacturer's stock Price on request - + Recommended 730073G Chromab. columns SiOH, 3mL, 500mg 294,87 € 731802 Chromafix C18 (M) 203,82 € 738101.100M Chromab. Multi 96, SB, 100mg, monobloc 369,36 €