DONeX, SPE Clean-up Cartridge, 3ml, pk/5 Back Catalog number: 12735 Availability: In the manufacturer's stock Price on request - + Recommended 730109 Chromab. columns NAN, 3mL,400/1400/400mg 410,89 € 12256045 Mega Bond Elut-NH2, 500mg 6mL, 30/PK 158,50 € 730014G Chromab. columns C18 ec, 6mL, 500mg 242,94 €