12mL Cartridge w/1g SPE Amide-2, 20/pk Back Catalog number: 4827 Availability: In the manufacturer's stock Price on request - + Recommended 730073.250 Chromab. columns SiOH, 3mL, 500mg BIG 548,46 € 730166G Chromab. columns C18 PAH, 6mL, 2000mg 402,55 € 730075.250 Chromab. columns SiOH, 6mL, 1000mg, BIG 672,64 €