DONeX, SPE Clean-up Cartridge, 3ml, pk/500 Back Catalog number: 12793 Availability: In the manufacturer's stock Price on request - + Recommended 730457 Chromab. columns Florisil, 3mL, 200mg 124,15 € 731853 Chromafix Dry (Na2SO4) (M) 168,64 € 730734 Chromab. columns PTL, 6mL 178,99 €