3mL Cartridge w/500mg Amberlite XAD-7, 50/pk Back Catalog number: 2193 Availability: In the manufacturer's stock Price on request - + Recommended 730225 Chromab. columns C4, 1mL, 100mg 170,65 € 730073G Chromab. columns SiOH, 3mL, 500mg 294,46 € 12213011 BONDESIL-C18, 40UM, 10GM 88,07 €