3mL Cartridge w/500mg Amberlite XAD-7, 50/pk Back Catalog number: 2193 Availability: In the manufacturer's stock Price on request - + Recommended 730015.250 Chromab. columns C18 ec, 6mL,1000mg,BIG 867,19 € 730012 Chromab. columns C18 ec, 3mL, 200mg 134,15 € 12102119 Bond Elut-SI, 1.5gm 3mL, 50/PK 200,94 €