Zorbax Eclipse XDB

Zorbax Eclipse XDB Capillary/Microbore HPLC Columns from Agilent

Agilent ZORBAX Eclipse XDB columns – C18 and C8 – provide good peak shape over a wide pH range (2–9).  Eclipse XDB columns are extra densely bonded and double endcapped through a proprietary process to cover as many active silanols as possible. The result is superior peak shape of basic compounds from pH 2–9. Eclipse XDB columns are available in 1, 0.5 and 0.3 mm column ID's for enhanced sensitivity with limited sample volume.

Zorbax Eclipse XDB

  • Good peak shape for basic, acidic and neutral compounds
  • High performance over a wide pH range – pH 2 – 9
  • Long lifetime with extra dense bonding (XDB) and double endcapping
  • Internal diameters of 0.3, 0.5 and 1 mm
  • Highest sensitivity for your smallest sample sizes
  • Compatible with all LC-MS interfaces
  • Ideal for 1D and 2D (proteomics) applications
  Eclipse XDB-C18 Eclipse XDB-C8
Pore Size 80 Å 80 Å
Surface Area 180 m2/g 180 m2/g
Temp. Limits 60 °C 60 °C
pH Range* 2 - 9 2 - 9
Endcapped Double Double
Carbon Load 10 % 7.6 %
USP Designation L1 L7

Eclipse XDB columns are designed for operation over a wide pH range. At pH 6 – 9, highest columns stability for all silica based columns is achieved by operating at temperatures <40 °C and using low buffer concentrations in the range of 0.01 – 0.02 M