12mL Cartridge w/1g SPE Amide-2, 20/pk Back Catalog number: 4827 Availability: In the manufacturer's stock Price on request - + Recommended 730077.250 Chromab. columns SA, 3mL, 500mg, BIG 18 092,00 Kč 12006 C18/18% 500mg/6mL 30/box Price on request 730073 Chromab. columns SiOH, 3mL, 500mg 3 294,00 Kč