12mL Cartridge w/1g SPE Amide-2, 20/pk Back Catalog number: 4827 Availability: In the manufacturer's stock Price on request - + Recommended 730626 Chromab. columns NH2, 6mL, 1000mg 4 524,00 Kč 12213012 Bondesil-C18, 40um, 100gm 10 109,38 Kč 12102037 Bond Elut SI, 500mg 3ml, 50/pk 4 487,92 Kč