12mL Cartridge w/1g SPE Amide-2, 20/pk Back Catalog number: 4827 Availability: In the manufacturer's stock Price on request - + Recommended 4265 3mL Cartridge w/ 200mg Spe-ed Advanta, 50pk Price on request 730014 Chromab. columns C18 ec, 6mL, 500mg 96,00 € 14256001 HF Mega Bond Elut C18, 1gm 6mL, 30/PK 163,26 €