Oligonucleotide Separation Technology (OST) columns contain second-generation hybrid-silica BEH Technology™ particles functionalized with C18. The separation of detritylated synthetic oligonucleotide samples is based on the well-established method of ion-pair, reversed-phase chromatography. This chemistry delivers exceptional sample resolution and superior column life. In addition, Waters manufacturing and quality control testing procedures help ensure consistent batch-to-batch and column-to-column performance regardless of application demands. The availability of 1.7 ?m UPLC® technology particles in various column dimensions gives you the flexibility to meet various lab-scale isolation or analysis needs. Features: Increased sample through-put with maintained component resolution with UPLC Technology LC/UV and LC/MS methods for enhanced quantitative and qualitative analyses Exceptional column life using Waters patented Ethylene-Bridged Hybrid (BEH Technology) particles