by Orochem
OroSil HPLC columns are uniquely designed for the separation of polar, semi-polar and nonpolar compounds at low to medium pH. The Orosil columns are more polar than the OroPure columns but are less polar than the OroStar HPLC column chemistry. The OroSil chemistry provides authentic C18 chemistries, commonly requested and used amongst chromatographers in the industry. With specialized surface treatment, the OroSil chemistry makes these columns compatible even with 100% aqueous mobile phase. The OroSil columns are known to be stable at pH 1.5-9.0 and are preferentially used against the Waters Symmetry, Inertsil C18 or ODS 3, Zorbax SB, and also the Atlantis dC18 chemistry.
| Vendor | Orochem | Internal Diameter | |
| Brand | Orosil C8 | Pore size | 100 |
| Modifification | Silica/C8 | Surface Area | 380 |
| Mode | Reversed-Phase | pH stability from | 1.5 |
| Particle Size | pH stability to | 9.0 | |
| Length |
| Vendor | Brand | Mode | Modification | Int. diam. | Length | Particles | Pores | Price |
|---|---|---|---|---|---|---|---|---|
| WATERS | SunFire C8 | Reversed-Phase | Silica/C8 | 3.0 mm | 20 mm | 5.0 μm | 100 Å | On request |
| ACE | ACE C8 | Reversed-Phase | Silica/C8 | 3.0 mm | 75 mm | 5.0 μm | 100 Å | On request |
| ACE | ACE Excel C8 | Reversed-Phase | Silica/C8 | 2.1 mm | 100 mm | 2.0 μm | 100 Å | On request |
| Teknokroma | Hyperpack C8 | Reversed-Phase | Silica/C8 | 4.0 mm | 150 mm | 3.0 μm | — | On request |
| KNAUER | Eurospher II | Reversed-Phase | Silica/C8 | 4.6 mm | 50 mm | 5.0 μm | 100 Å | On request |
| Teknokroma | Tracer EXTRASIL C8 | Reversed-Phase | Silica/C8 | 4.6 mm | 150 mm | 5.0 μm | 80 Å | On request |
| Imtakt | Unison US-C8 | Reversed-Phase | Silica/C8 | 1.5 mm | 30 mm | 5.0 μm | 130 Å | On request |
| Imtakt | Unison UK-C8 | Reversed-Phase | Silica/C8 | 10.0 mm | 150 mm | 3.0 μm | 130 Å | On request |
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