3mL Cartridge w/500mg Amberlite XAD-7, 50/pk Back Catalog number: 2193 Availability: In the manufacturer's stock Price on request - + Recommended 730017 Chromab. columns Alox A, 6mL, 1000mg 153,16 € 2013 C-8 Octyl 500mg/3mL, 50/pk Price on request 730005.250 Chromab. columns C18, 6mL, 1000mg, BIG 867,19 €