12mL Cartridge w/1g SPE Amide-2, 20/pk Back Catalog number: 4827 Availability: In the manufacturer's stock Price on request - + Recommended 730033G Chromab. columns NH2, 3mL, 500mg 8 970,00 Kč 12256012 Mega BE-NH2, 1gm 6ml, 30/pk 5 482,66 Kč 730005 Chromab. columns C18, 6mL, 1000mg 3 198,00 Kč