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 730405 Chromab. columns C18 ec, 45mL, 5000mg 6 240,00 Kč 730418 Chromab. columns OH (Diol), 6mL, 500mg 3 094,00 Kč