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 Silica | Pore size | 120 |
| Modifification | Silica | pH stability from | 2.0 |
| Mode | Normal-Phase/HILIC | pH stability to | 12.0 |
| Particle Size | Endcapped | Yes | |
| Length | Operating Temperature | 80 |
| Vendor | Brand | Mode | Modification | Int. diam. | Length | Particles | Pores | Price |
|---|---|---|---|---|---|---|---|---|
| Chromenta | Chromenta KB Silica | Normal-Phase/HILIC | Silica | 4.6 mm | 150 mm | 3.0 μm | 120 Å | On request |
| Sepax Technologies | Sepax HP 120 Silica | Normal-Phase/HILIC | Silica | 4.6 mm | 250 mm | 5.0 μm | 120 Å | On request |
| Agilent Technologies | ZORBAX Eclipse Plus | Normal-Phase/HILIC | Silica | 3.0 mm | 100 mm | 1.8 μm | 95 Å | On request |
| Sepax Technologies | Sepax HP 120 Silica | Normal-Phase/HILIC | Silica | 2.1 mm | 250 mm | 5.0 μm | 120 Å | On request |
| PerkinElmer | Brownlee SPP HILIC | Normal-Phase/HILIC | Silica | 3.0 mm | 50 mm | 2.7 μm | — | On request |
| Agilent Technologies | ZORBAX Eclipse Plus | Normal-Phase/HILIC | Silica | 2.0 mm | 100 mm | 3.5 μm | 95 Å | On request |
| Chromenta | Chromenta KB Silica | Normal-Phase/HILIC | Silica | 3.0 mm | 100 mm | 5.0 μm | 120 Å | On request |
| Chromenta | Chromenta KB Silica | Normal-Phase/HILIC | Silica | 3.0 mm | 300 mm | 10.0 μm | 120 Å | On request |
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