Cogent Guard Column Kit with Bidentate C18 Back Catalog number: 40018-HG4 Manufacturer: MicroSolv Technology Corporation Availability: 3 weeks Price on request - + Recommended 760084.46 EC 100/4.6 NUCLEODUR C18Gravity, 3 µm 879,60 € A2010050G100 Polaris 5 C8-A 50 X 10.0mm Guard 568,00 € 760455.46 EC 75/4.6 NUCLEODUR PFP, 5 µm 610,55 €