Agilent ZORBAX Extend-C18 RRHT threaded column for high pH and high pressure liquid chromatography
The Agilent ZORBAX Extend-C18 RRHT threaded columns are engineered for high-performance reversed-phase HPLC, featuring a patented bidentate organosilane bonded to ultra-pure silica support. This design provides exceptional stability at high pH levels, making them suitable for separating highly basic compounds as free bases. The columns utilize a proprietary high-pressure slurry-loading technique to ensure a uniform bed density and maximum efficiency.
| Maximum Operating Pressure | 600 bar (9000 psi) |
|---|---|
| Maximum Operating Temperature | 60 °C |
| Optimum pH Range | pH 2 - 11.5 |
| Particle Size | 1.8 µm |
| Pore Size | 830 Å |
4.6-mm ID columns support 16,000 psi (1000 bar) operation.
Yes, they are designed for stable use with high pH mobile phases up to pH 11.5.
Methanol is preferred as an organic modifier for high pH applications.