3mL Cartridge w/500mg Amberlite XAD-7, 50/pk Back Catalog number: 2193 Availability: In the manufacturer's stock Price on request - + Recommended 730221 Chromab. columns C2, 3mL, 500mg 146,95 € 730012 Chromab. columns C18 ec, 3mL, 200mg 131,53 € 904-0100-C ISOLUTE® Multimode 1g/6mL (30/pk) Price on request