Eclipse Plus columns are recommended for initial method development from pH 2-9 and provide high resolution and excellent peak shape of all types of compounds. Like all Eclipse columns Eclipse Plus columns achieve superior performance through extra dense bonding and a precise double-endcapping process. But Eclipse Plus columns also feature enhanced high-performance silica, new endcapping reagents, and a unique bonding process that is optimized for the improved silica.
Eclipse Plus columns are available in C18, C8, Phenyl-Hexyl and a C18 bonded phase for the separation of PAH’s (polycyclic aromatic hydrocarbons). These phase choices provide the flexibility to rapidly separate all types of compounds including achieving superior resolution with aromatic compounds using the Eclipse Plus Phenyl-Hexyl. Eclipse Plus columns are available in particle sizes ranging from 1.8 µm to 5 µm – RRHT to Prep and are a rapidly growing new product family. Rapid Resolution HT (RRHT) 1.8 µm columns provide the fastest analysis times and the highest resolution in a new wider range of column dimensions supporting high pressure use.
ZORBAX Eclipse Plus Column Specifications**
| ZORBAX Eclipse Plus C18 |
95Å
| 160 m²/g |
60 °C |
2.0 - 9.0* |
Double |
9% |
| ZORBAX Eclipse Plus C8 |
95Å
| 160 m²/g |
60 °C |
2.0 - 9.0* |
Double |
7% |
| ZORBAX Eclipse PAH |
95Å
| 160 m²/g |
60 °C |
2.0 - 8.0* |
Double |
14% |
| ZORBAX Eclipse Phenyl-Hexyl |
95Å
| 160 m²/g |
60 °C |
2.0 - 8.0* |
Double |
9% |
**Specifications represent typical values only.
*Column lifetime will be reduced significantly at pH >7 and temperature > 40 °C. At pH 6-9, highest column stability for all silica based columns is obtained by operating at temperatures < 40 °C and using lower buffer concentrations in range of 0.01 – 0.02M, especially with phosphate and carbonate buffers.
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