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 | Product usage | Basic compounds |
| Vendor | Brand | Mode | Modification | Int. diam. | Length | Particles | Pores | Price |
|---|---|---|---|---|---|---|---|---|
| Welch Materials | Xtimate Phenyl-Hexyl | Reversed-Phase | Hybrid silica-polymer/Phenyl-Hexyl | 3.0 mm | 300 mm | 3.0 μm | — | On request |
| Welch Materials | Xtimate Phenyl-Hexyl | Reversed-Phase | Hybrid silica-polymer/Phenyl-Hexyl | 50.0 mm | 250 mm | 5.0 μm | — | On request |
| Welch Materials | Xtimate Phenyl-Hexyl | Reversed-Phase | Hybrid silica-polymer/Phenyl-Hexyl | 3.0 mm | 200 mm | 3.0 μm | — | On request |
| Welch Materials | Xtimate Phenyl-Hexyl | Reversed-Phase | Hybrid silica-polymer/Phenyl-Hexyl | 10.0 mm | 250 mm | 5.0 μm | — | On request |
| Welch Materials | Xtimate Phenyl-Hexyl | Reversed-Phase | Hybrid silica-polymer/Phenyl-Hexyl | 2.1 mm | 150 mm | 5.0 μm | — | On request |
| Welch Materials | Xtimate Phenyl-Hexyl | Reversed-Phase | Hybrid silica-polymer/Phenyl-Hexyl | 2.1 mm | 30 mm | 5.0 μm | — | On request |
| Welch Materials | Xtimate Phenyl-Hexyl | Reversed-Phase | Hybrid silica-polymer/Phenyl-Hexyl | 4.0 mm | 30 mm | 3.0 μm | — | On request |
| Welch Materials | Xtimate Phenyl-Hexyl | Reversed-Phase | Hybrid silica-polymer/Phenyl-Hexyl | 21.2 mm | 250 mm | 5.0 μm | — | On request |
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