3mL Cartridge w/500mg Amberlite XAD-7, 50/pk Back Catalog number: 2193 Availability: In the manufacturer's stock Price on request - + Recommended 7020-03 SPE Column BAKERBOND C18, 500mg/3ml, pk/50 248,43 € 12102079 Bond Elut-SAX, 50mg 1mL, 100/PK 288,60 € 12735 DONeX, SPE Clean-up Cartridge, 3ml, pk/5 Price on request