3mL Cartridge w/500mg Amberlite XAD-7, 50/pk Back Catalog number: 2193 Availability: In the manufacturer's stock Price on request - + Recommended 730406 Chromab. columns SiOH, 45mL, 5000mg 198,58 € 730011 Chromab. columns C18 ec, 1mL, 100mg 174,28 € 14102037 HF Bond Elut-SI, 500mg 3mL, 50/PK 170,97 €