DONeX, SPE Clean-up Cartridge, 3ml, pk/500 Back Catalog number: 12793 Availability: In the manufacturer's stock Price on request - + Recommended 730507.250 Chromab. columns XTR, 70mL,14500mg,250p 1 043,59 € 730082.250 Chromab. columns Florisil,6mL,1000mg,BIG 686,57 € 730249G Chromab. col. Na2SO4/Florisil, 6mL,2/2g 239,77 €