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 C18 | Pore size | 100 |
| Modifification | Silica/C18 | 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 |
|---|---|---|---|---|---|---|---|---|
| Welch Materials | Ultisil XB-C18 | Reversed-Phase | Silica/C18 | 3.0 mm | 50 mm | 5.0 μm | 120 Å | On request |
| SGE Analytical Science | ProteCol C18 G (Stainless Steel) | Reversed-Phase | Silica/C18 | 2.1 mm | 50 mm | 3.0 μm | 200 Å | On request |
| Dikma Technologies Inc. | Inspire C18 | Reversed-Phase | Silica/C18 | 2.1 mm | 50 mm | 3.0 μm | 100 Å | 353.00 |
| KNAUER | Eurosil Bioselect | Reversed-Phase | Silica/C18 | 3.0 mm | 125 mm | 5.0 μm | 300 Å | On request |
| Higgins Analytical | PROTO 200 C18 | Reversed-Phase | Silica/C18 | 0.3 mm | 150 mm | 5.0 μm | 200 Å | On request |
| Sepax Technologies | Sepax HP 120 C18 | Reversed-Phase | Silica/C18 | 10.0 mm | 150 mm | 5.0 μm | 120 Å | On request |
| BISCHOFF | ProntoSIL 300-3-C18 ace-EPS | Reversed-Phase | Silica/C18 | 3.0 mm | 250 mm | 3.0 μm | 300 Å | On request |
| Thermo Fisher Scientific | Syncronis | Reversed-Phase | Silica/C18 | 4.6 mm | 50 mm | 5.0 μm | 100 Å | On request |
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