12mL Cartridge w/1g SPE Amide-2, 20/pk Back Catalog number: 4827 Availability: In the manufacturer's stock Price on request - + Recommended 730031 Chromab. columns NH2, 1mL, 100mg 5 265,00 Kč 730015.250 Chromab. columns C18 ec, 6mL,1000mg,BIG 20 909,00 Kč 730005 Chromab. columns C18, 6mL, 1000mg 3 120,00 Kč