3mL Cartridge w/500mg Amberlite XAD-7, 50/pk Back Catalog number: 2193 Availability: In the manufacturer's stock Price on request - + Recommended 730013ASP Chromab. columns C18 ec, 3mL, 500mg,ASP 392,93 € 14102052 HF Bond Elut-C18, 500mg 6ml, 30/pk 112,59 € 730003.250 Chromab. columns C18, 3mL, 500mg, BIG 594,68 €