by Welch Materials
LP is abbreviation for Low pH. LP phases are designed for use at low pH condition. LP phase consists of two very bulky hydrophobic protective groups to prevent siloxane bond from hydrolysis at low pH condition. So the LP column is extremely stable in very low pH mobile phase and at high temperature, even at the lowest pH 1.0, making it the most stable C18 for low pH application in the market. Because LP phase is not endcapped and has more surface silanols, LP phase has more retention for some early eluted polar compounds, and provides some different selectivity than traditional C18. LP-C18 is the most polar C18 among all the C18 products of Welch.
| Vendor | Welch Materials | Pore size | 120 |
| Brand | Ultisil LP-C18 | Surface Area | 320 |
| Modifification | Silica/C18 | Carbon Load, % | 10.0 |
| Mode | Reversed-Phase | Endcapped | No |
| Particle Size | pH stability from | 1.0 | |
| Length | pH stability to | 8.0 | |
| Internal Diameter |
| Vendor | Brand | Mode | Modification | Int. diam. | Length | Particles | Pores | Price |
|---|---|---|---|---|---|---|---|---|
| Bonna-Agela Technologies | UHP ASB C18 | Reversed-Phase | Silica/C18 | 4.6 mm | 30 mm | 1.9 μm | 100 Å | On request |
| Imtakt | Unison UK-C18 HT | Reversed-Phase | Silica/C18 | 1.5 mm | 75 mm | 3.0 μm | 130 Å | On request |
| Bonna-Agela Technologies | Venusil AQ C18 | Reversed-Phase | Silica/C18 | 4.6 mm | 50 mm | 5.0 μm | 100 Å | On request |
| Phenomenex | Luna C18(2) | Reversed-Phase | Silica/C18 | 1.0 mm | 50 mm | 5.0 μm | 100 Å | On request |
| ACE | ACE C18-HL | Reversed-Phase | Silica/C18 | 7.75 mm | 100 mm | 5.0 μm | 90 Å | On request |
| Princeton Chromatography Inc. | PrincetonSPHER OMNI C18-100 | Reversed-Phase | Silica/C18 | 3.0 mm | 100 mm | 5.0 μm | 100 Å | On request |
| RESTEK | Pinnacle DB | Reversed-Phase | Silica/C18 | 4.6 mm | 30 mm | 5.0 μm | 140 Å | On request |
| Welch Materials | Ultisil XB-C18 | Reversed-Phase | Silica/C18 | 3.0 mm | 250 mm | 5.0 μm | 120 Å | On request |
No customer reviews yet. Be the first to share your experience!
Reach thousands of researchers worldwide. Fill in your details and our team will contact you shortly.
