3mL Cartridge w/500mg Amberlite XAD-7, 50/pk Back Catalog number: 2193 Availability: In the manufacturer's stock Price on request - + Recommended 730024 Chromab. columns C8, 6mL, 500mg 99,32 € 12102079 Bond Elut-SAX, 50mg 1mL, 100/PK 291,37 € 730063 Chromab. columns CN, 3mL, 500mg 185,20 €