3mL Cartridge w/500mg Amberlite XAD-7, 50/pk Back Catalog number: 2193 Availability: In the manufacturer's stock Price on request - + Recommended 730033 Chromab. columns NH2, 3mL, 500mg 189,07 € 12113036 Bond Elut LRC-SI, 500mg, 50/pk 165,43 € 730107 Chromab. columns SiOH, 6mL, 2000mg 153,16 €