Cogent Guard Column Kit with Bidentate C18 Back Catalog number: 40018-HG4 Manufacturer: MicroSolv Technology Corporation Availability: 3 weeks Price on request - + Recommended A2020250X212 Polaris C18-Ether 5u 250 x 21.2mm 137 575,52 Kč 760806.30 EC 50/3 NUCLEODUR SPHINX RP, 3 µm 17 810,00 Kč 721649.30 EC 4/3 NUCLEOSIL 100-3 C18 NAUTILUS 3 978,00 Kč