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 C18 | Pore size | 120 |
| Modifification | Silica/C18 | 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 |
|---|---|---|---|---|---|---|---|---|
| Teknokroma | Advantix ODS | Reversed-Phase | Silica/C18 | 2.1 mm | 100 mm | 5.0 μm | — | On request |
| Agilent Technologies | Pursuit XRs Ultra | Reversed-Phase | Silica/C18 | 2.0 mm | 50 mm | 2.8 μm | 100 Å | On request |
| ACE | ACE C18 | Reversed-Phase | Silica/C18 | 4.0 mm | 250 mm | 5.0 μm | 100 Å | On request |
| Sepax Technologies | Sepax BR 120 C18 | Reversed-Phase | Silica/C18 | 0.3 mm | 100 mm | 5.0 μm | 120 Å | On request |
| Thermo Fisher Scientific | BetaSil | Reversed-Phase | Silica/C18 | 0.5 mm | 250 mm | 3.0 μm | 100 Å | On request |
| GL Sciences | Inertsil ODS-4 HP | Reversed-Phase | Silica/C18 | 2.1 mm | 30 mm | 3.0 μm | 100 Å | On request |
| Bonna-Agela Technologies | Durashell C18 (L) | Reversed-Phase | Silica/C18 | 10.0 mm | 150 mm | 5.0 μm | 150 Å | On request |
| RESTEK | Pinnacle DB | Reversed-Phase | Silica/C18 | 1.0 mm | 100 mm | 3.0 μm | 140 Å | On request |
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