by Chromenta
EP stands for "Extended pH" range. Chromenta EP packing material is made by our proprietary grafting process that evenly incorporates organic layers on the surface of ultra-high purity (99.999% SiO2) porous silica particles. This polymer-coated Chromenta EP packing material is designed to provide excellent peak shape, high efficiency, and particularly long lifetime for use in high pH. In addition, Chromenta EP columns can be used in low and intermediate pH with excellent stability. In mid-pH range, the hybrid polymer-silica layers effectively shield analytes from the surface silanol groups, thus further improve the peak shape.
| Vendor | Chromenta | Internal Diameter | |
| Brand | Chromenta EP C4 | Pore size | 120 |
| Modifification | Silica/C4 | Endcapped | Yes |
| Mode | Reversed-Phase | Operating Temperature | 80 |
| Particle Size | pH stability from | 2.0 | |
| Length | pH stability to | 12.0 |
| Vendor | Brand | Mode | Modification | Int. diam. | Length | Particles | Pores | Price |
|---|---|---|---|---|---|---|---|---|
| Orochem | Reliasil C4 90 | Reversed-Phase | Silica/C4 | 3.0 mm | 150 mm | 5.0 μm | 90 Å | On request |
| Sepax Technologies | Sepax Bio 300 C4 | Reversed-Phase | Silica/C4 | 0.3 mm | 50 mm | 3.0 μm | 300 Å | On request |
| KNAUER | Eurospher II | Reversed-Phase | Silica/C4 | 30.0 mm | 150 mm | 5.0 μm | 100 Å | On request |
| ES Industries | Chromegabond 500 C4 | Reversed-Phase | Silica/C4 | 4.6 mm | 250 mm | 5.0 μm | 500 Å | On request |
| Bonna-Agela Technologies | Venusil XBP C4 | Reversed-Phase | Silica/C4 | 2.1 mm | 30 mm | 5.0 μm | 100 Å | On request |
| KNAUER | Eurosil Bioselect | Reversed-Phase | Silica/C4 | 4.0 mm | 100 mm | 10.0 μm | 300 Å | On request |
| Sepax Technologies | Sepax Bio 300 C4 | Reversed-Phase | Silica/C4 | 1.0 mm | 100 mm | 3.0 μm | 300 Å | On request |
| Princeton Chromatography Inc. | PrincetonSPHER C4-300 | Reversed-Phase | Silica/C4 | 7.8 mm | 250 mm | 5.0 μm | 300 Å | On request |
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