12mL Cartridge w/1g SPE Amide-2, 20/pk Back Catalog number: 4827 Availability: In the manufacturer's stock Price on request - + Recommended 12256023 Mega BE-C18, 5gm 20ml, 20/pk 8 142,12 Kč 730015 Chromab. columns C18 ec, 6mL, 1000mg 3 120,00 Kč 730023 Chromab. columns C8, 3mL, 500mg 3 597,00 Kč