The use of an ultra pure, ultra inert silica has many recognized benefits, including improved reproducibility, lifetime and chromatographic performance (particularly with basic molecules). However, since the ultra inert silica surface effectively no longer contributes to the separation, C18 columns manufactured with high purity silicas show near identical selectivity. It is therefore highly likely that a problem separation on one leading brand will not be significantly improved by changing to an alternate manufacturer’s equivalent product. 

    For many years, experienced chromatographers have been seeking phases with the proven performance and reproducibility benefits shown by such leading C18 column brands, but which additionally provide the alternate selectivity required for their challenging applications.

    ACE 90Å -100Å / ACE C18-AR / ACE-Hichrom

      • Provides alternate selectivity to “standard” C18 columns – additionally recommended for
            compounds with aromatic functionality
      • Ultra inert, ultra-high purity silica, for excellent peak shape and reproducibility 
      • Compatible with highly aqueous mobile phases to enable the retention & separation of polar 
      • Exceptional bonded phase stability for elevated temperature applications
      • Ultra low bleed phase ensures UV and LC/MS compatibility
      • Available in high throughput column dimensions