12mL Cartridge w/1g SPE Amide-2, 20/pk Back Catalog number: 4827 Availability: In the manufacturer's stock Price on request - + Recommended 730071 Chromab. columns SiOH, 1mL, 100mg 147,98 € 12102041 Bond Elut NH2, 500mg 3ml, 50/pk 251,02 € 12102127 Bond Elut-Pba, 100Mg 3ml, 50/Pk 471,47 €