Material: stainless steel. Further attractive products to complete your chromatography laboratory can be found on our Chromatography page! HPLC column NUCLEODUR ® C 18 Gravity This high density C 18 phase based on high purity NUCLEODUR ® silica gel with its endcapping suppresses any unwanted polar interactions between the silica surface and the sample, which makes “ Gravity ” particularly suitable for the separation of basic and other ionizable analytes. Due to the enhanced pH stability, LC/MS suitability and superior base deactivation (BDS) it is a perfect choice for method development and valuable for RP applications. Delivery incl. 1x analytical HPLC column, instruction leaflet, certificate of analysis.