Zorbax Eclipse XDB
Zorbax Eclipse XDB HPLC Columns from Agilent Technologies
Agilent ZORBAX Eclipse XDB columns – C18, C8, Phenyl and CN – provide four bonded phase choices for method development optimization. These columns provide good peak shape over a wide pH range (2–9) for additional method development flexibility with one family of columns.
Eclipse XDB columns can be used for method development at low pH (2–3) and 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 as possible. The result is superior peak shape of basic compounds from pH 2–9.
ZORBAX Eclipse XDB columns are available in the following particle sizes:
- 5µm Analytical HPLC Columns
- 3.5µm Analytical HPLC Columns – Rapid Resolution
- 1.8µm Analytical HPLC Columns – Rapid Resolution HT (High Throughput) 600 bar
- 1.8µm Analytical HPLC Columns – Rapid Resolution HD (High Definition) 1200 bar
All pictures shown are for illustration purpose only. Actual product may vary.
- Buy
- Features
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- Four selectivity choices for method development optimization
- Good peak shape for basic, acidic and neutral compounds
- High performance over a wide pH range – pH 2–9
- Particle sizes from 1.8 to 5 µm
- Long lifetime with extra dense bonding (XDB) and double endcapping
- Eclipse XDB-CN equilibrates more rapidly than ZORBAX Rx-Sil and is used for many of the same normal-phase applications
- Specifications
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Pore Size Surface Area Temp Limits pH Range* Endcapped Carbon Load USP Designation ZORBAX Eclipse XDB-C18 80 Å 180 m²/g 60 °C 2 - 9 Double 10% L1 ZORBAX Eclipse XDB-C8 80 Å 180 m²/g 60 °C 2 - 9 Double 7.6% L7 ZORBAX Eclipse XDB-Phenyl 80 Å 180 m²/g 60 °C 2 - 9 Double 7.2% L11 ZORBAX Eclipse XDB-CN 80 Å 180 m²/g 60 °C 2 - 8 Double 4.3% L10 Specifications represent typical values only.
*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. - Literature