by Welch Materials
Xtimate is the brand-name for Welch premium HPLC column series. There are two types of Xtimate column, those based on based on Hybride Silica Polymer packing materials, and those based on pure polymer materials.
| Vendor | Welch Materials | Internal Diameter | |
| Brand | Xtimate Phenyl-Hexyl | Surface Area | 320 |
| Modifification | Hybrid silica-polymer/Phenyl-Hexyl | Endcapped | Yes |
| Mode | Reversed-Phase | pH stability from | 1.0 |
| Particle Size | pH stability to | 12.5 | |
| Length |
| Vendor | Brand | Mode | Modification | Int. diam. | Length | Particles | Pores | Price |
|---|---|---|---|---|---|---|---|---|
| Welch Materials | Xtimate Phenyl-Hexyl | Reversed-Phase | Hybrid silica-polymer/Phenyl-Hexyl | 4.0 mm | 100 mm | 5.0 μm | — | On request |
| Welch Materials | Xtimate Phenyl-Hexyl | Reversed-Phase | Hybrid silica-polymer/Phenyl-Hexyl | 4.0 mm | 100 mm | 3.0 μm | — | On request |
| Welch Materials | Xtimate Phenyl-Hexyl | Reversed-Phase | Hybrid silica-polymer/Phenyl-Hexyl | 3.0 mm | 250 mm | 5.0 μm | — | On request |
| Welch Materials | Xtimate Phenyl-Hexyl | Reversed-Phase | Hybrid silica-polymer/Phenyl-Hexyl | 2.1 mm | 100 mm | 5.0 μm | — | On request |
| Welch Materials | Xtimate Phenyl-Hexyl | Reversed-Phase | Hybrid silica-polymer/Phenyl-Hexyl | 4.6 mm | 200 mm | 3.0 μm | — | On request |
| Welch Materials | Xtimate Phenyl-Hexyl | Reversed-Phase | Hybrid silica-polymer/Phenyl-Hexyl | 30.0 mm | 250 mm | 5.0 μm | — | On request |
| Welch Materials | Xtimate Phenyl-Hexyl | Reversed-Phase | Hybrid silica-polymer/Phenyl-Hexyl | 4.6 mm | 250 mm | 3.0 μm | — | On request |
| Welch Materials | Xtimate Phenyl-Hexyl | Reversed-Phase | Hybrid silica-polymer/Phenyl-Hexyl | 4.0 mm | 30 mm | 5.0 μm | — | On request |
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