Hydrosphere c18 is ultra pure silica and unique selectivity leads to a stationary phase that fulfils the relevant requiments of HPLC users.
 Mimal metal content and very low concentrations of residual silanols make this the ideal phase for the analysis of basic pharmaceuticals and chelating compounds even under LC-MS conditions(a seperation in non-phosphate buffered systems).In addition the possiblity to seperate polar compounds under high aqueous mobile phase conditions.

Based on highly inert, ultra pure, pH neutral silica "Hydrophilic" C18 surface for enhanced polar selectivity Extremely rigorous physical and chemical specification suitable for conventional reversed phase and highly aqueous application Pharmaceutical method development