3mL Cartridge w/500mg Amberlite XAD-7, 50/pk Back Catalog number: 2193 Availability: In the manufacturer's stock Price on request - + Recommended 730012G Chromab. columns C18 ec, 3mL, 200mg 287,97 € 7020-03 SPE Column BAKERBOND C18, 500mg/3ml, pk/50 250,56 € 12102037 Bond Elut SI, 500mg 3ml, 50/pk 173,51 €