With eXtra Dense Bonding
- Excellent first choice for method development
- Excellent peak shape for basic, acidic and neutral compounds
- High performance over a wide pH range pH 2-9
- High purity silica
- Long lifetime with extra dense bonding and double endcapping
The Agilent ZORBAX Eclipse XDB columns — C18, C8, Phenyl, and CN — are designed to provide good peak shape for basic, acidic and neutral compounds over the pH range 2-9. This wide useable pH range allows superior method development flexibility with one family of columns. Eclipse XDB columns can be used for initial method development at low pH (2-3) and provide high resolution and excellent peak shape of all types of compounds. The same column can be used for method development in the mid pH (6-8) region. In the mid pH region, residual silanols are more active and tailing interactions are more likely. To overcome these interactions, Eclipse XDB columns are eXtra Densely Bonded and double-endcapped through a proprietary process to cover as many active silanols at possible. The result is superior peak shape of basic compounds from pH 2-9. Eclipse XDB columns are available in C18, C8, Phenyl, and CN bonded phases for selectivity optimization of most separations with StableBond, Bonus-RP and Extend-C18 available as additional selectivity choices.