3mL Cartridge w/500mg Amberlite XAD-7, 50/pk Back Catalog number: 2193 Availability: In the manufacturer's stock Price on request - + Recommended 12006 C18/18% 500mg/6mL 30/box Price on request 730070.250 Chromab. columns SiOH, 6mL, 500mg, BIG 15 288,00 Kč 4827 12mL Cartridge w/1g SPE Amide-2, 20/pk Price on request