by Welch Materials
Welch Materials has four kinds of polymer coated chiral columns based on silica, including Ultisil Chiral AD, Chiral AS, Chiral OD and Chiral OJ. 80% of all racemic compounds could be separated by those four chiral columns. Chiral AD and Chiral OD are the most used chiral columns.
Key characteristics of Ultisil Chiral columns:
| Vendor | Welch Materials | Particle Size | 5.0 |
| Brand | Ultisil Chiral AS | Length | 150 |
| Modifification | Amylose-tris-[(S)-phenylethyl]carbamate coated sil | Internal Diameter | 4.6 |
| Mode | Chiral |
| Vendor | Brand | Mode | Modification | Int. diam. | Length | Particles | Pores | Price |
|---|---|---|---|---|---|---|---|---|
| Welch Materials | Ultisil Chiral AS | Chiral | Amylose-tris-[(S)-phenylethyl]carbamate coated sil | 4.6 mm | 150 mm | 10.0 μm | — | On request |
| Welch Materials | Ultisil Chiral AS | Chiral | Amylose-tris-[(S)-phenylethyl]carbamate coated sil | 4.6 mm | 250 mm | 10.0 μm | — | On request |
| Welch Materials | Ultisil Chiral AS | Chiral | Amylose-tris-[(S)-phenylethyl]carbamate coated sil | 4.6 mm | 250 mm | 5.0 μm | — | On request |
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