12mL Cartridge w/1g SPE Amide-2, 20/pk Back Catalog number: 4827 Availability: In the manufacturer's stock Price on request - + Recommended 730404 Chromab. columns C18 ec, 15mL, 2000mg 4 056,00 Kč 730217 Chromab. columns SiOH, 15mL, 2000mg 3 146,00 Kč 730011 Chromab. columns C18 ec, 1mL, 100mg 4 290,00 Kč