3mL Cartridge w/500mg Amberlite XAD-7, 50/pk Back Catalog number: 2193 Availability: In the manufacturer's stock Price on request - + Recommended 730217 Chromab. columns SiOH, 15mL, 2000mg 127,81 € 730261 Chromab. columns C18, 70mL, 10g 214,42 € 730299 Chromab. columns C18 Hydra, 6mL, 500mg 101,40 €