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by Merck
Purospher® RP-18 (5 µm) LiChroCART® 125-4
Purospher® RP-18 is designed for the separation of problematic basic compounds with simple neutral eluents. In addition Purospher® RP-18 allows the separation of hydrophilic compounds with aqueous mobile phase. Purospher® RP-18 is based upon a high-purity, metal free silica. The multi-step chemical modification and deactivation of the surface enables a peak-tailing free elution of basic and chelating compounds. Purospher® RP-18 is not suitable for the separation of acidic compounds. The good chemical stability of Purospher® RP-18 enables the use of mobile phase conditions at pH 8.
| Vendor | Merck | Max Pressure | 6000 |
| Brand | Purospher® | Surface Area | 480 |
| Modifification | Silica/C18 | Carbon Load, % | 17.0 |
| Mode | Reversed-Phase | Endcapped | No |
| Particle Size | 5.0 | Operating Temperature | 60 |
| Length | 125 | pH stability from | 2.0 |
| Internal Diameter | 4.0 | pH stability to | 8.0 |
| Pore size | 90 |
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