Primesep B separates Vitamin E and Vitamin E acetate with reversed peak order of a traditional C8 column. The different selectivity is due to an embedded basic functional group on the stationary phase which contributes polar interactions to the separation. Excellent peak shape results with a mass spec compatible mobile phase of water and acetonitrile (MeCN, ACN) with UV detection at 205 nm.
| Column | Primesep B, 3.2×150 mm, 5 µm, 100 Å |
|---|---|
| Mobile Phase | MeCN/H2O – 90/10% |
| Flow Rate | 0.5 mL/min |
| Detection | UV 205 |