by Welch Materials
Our Ultisil Amino Acid HPLC columns are made from spherical, totally porous, and ultra high purity (>99.999%) type B silica particles. Our proprietary surface modification before bonding generates a very smooth and uniform surface with less acidic surface silanol. Ultisil Amino Acid columns provide the best performance in peak shape, effi ciency and resolution for the analysis of 18 amino acids. Total sample preparing time can be achieved in as little as 30 min.
| Vendor | Welch Materials | Length | |
| Brand | Ultisil Amino Acid | Internal Diameter | |
| Mode | Reversed-Phase | Pore size | 120 |
| Particle Size |
| Vendor | Brand | Mode | Modification | Int. diam. | Length | Particles | Pores | Price |
|---|---|---|---|---|---|---|---|---|
| KNAUER | Eurosil Bioselect | Reversed-Phase | Silica/C18 | 2.0 mm | 250 mm | 10.0 μm | 300 Å | On request |
| GL Sciences | Inertsil WP300 C8 | Reversed-Phase | Silica/C8 | 3.0 mm | 150 mm | 5.0 μm | 300 Å | On request |
| RESTEK | Pinnacle DB | Reversed-Phase | Silica/Polar modified C18 | 2.1 mm | 250 mm | 5.0 μm | 140 Å | On request |
| ES Industries | Chromegabond 300 C4 | Reversed-Phase | Silica/C4 | 4.6 mm | 150 mm | 5.0 μm | 300 Å | On request |
| ACE | ACE C18-AR | Reversed-Phase | Silica/C18/Phenyl | 10.0 mm | 125 mm | 10.0 μm | 100 Å | On request |
| Imtakt | Unison UK-C18 | Reversed-Phase | Silica/C18 | 2.0 mm | 10 mm | 3.0 μm | 130 Å | On request |
| CERI | L-column2 C8 | Reversed-Phase | Silica/C8 | 1.5 mm | 100 mm | 3.0 μm | 120 Å | On request |
| Luknova | Poly Phenyl-100 | Reversed-Phase | Polystyrene/ Divinylbenzene/ Phenyl | 10.0 mm | 50 mm | 10.0 μm | 100 Å | On request |
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