The Supelco β-DEX 225 is a modified form of the β-DEX 325 phase, ａnd employs acetyl derivatives at the 2,3-positions instead of more traditional methyl derivatives. The chiral stationary phase in β-DEX 225 columns contains 2,3-di-O-acetyl-6-0-TBDMS-β-cyclodextrin embedded in an intermediate polarity phase. These columns provide unique selectivity for enantiomeric separations of small molecules： alcohols, aldehydes (e.g., 2-phenylpropionaldehyde), esters (e.g. methyl malate, methyl lactate), flavor compounds ａnd ketones.
温度限值：?30°C 至 230°C
应用：DEX225 - 二乙酰基衍生化环糊精和二甲基衍生化环糊精，为目标手性化合物或位置异构体分离提供了更多的选择， 能分离挥发性手性分子，包括醇、醛、羧酸、过氧化物、酯和卤代化合物。
material ?
| fused silica
| description ?
| GC capillary column
| Beta value ?
| 250
| df??
| 0.25?μm
| application(s) ?
| gas chromatography (GC)： suitable
| L × I.D. ?
| 30?m × 0.25?mm
| matrix active group ?
| non-bonded; 25% 2,3-di-O-acetyl-6-O-TBDMS-β-cyclodextrin in SPB-20 poly(20% phenyl/80% dimethylsiloxane) phase
| column type ?
| capillary chiral
| mode of chromatography ?
| Chiral
| ?
描述
| 内径(mm)
| 长度(m)
| 膜厚(μm)
| 订货号
| β-DEX225
| 0.25
| 30
| 0.25
| 24348
|
更新时间：2023/11/10 8:27:48 |
技术支持：
