Capillary columns for GC enantiomer separation. LIPODEX cyclodextrin phases are made of cyclic oligosaccharides consisting of six (α-cyclodextrin), seven (β-cyclodextrin) or eight (γ-cyclodextrin) glucose units bonded through α-1,4-linkages. Regioselective alkylation and/or acylation of the hydroxyl groups leads to lipophilic phases with varying enantioselectivity, which are well suited for chiral analyses. Important advantage - many compounds can be analyzed without derivatization (however, for certain substances enantioselectivity can be favorably influenced by formation of derivatives). A large number of separations have been achieved, however, it is not possible to make a general prediction, which phase could solve a given separation task. Even for compounds with small structural differences or within homologous series the enantiodifferentiation can be quite different.
Capillary columns for GC enantiomer separation. LIPODEX cyclodextrin phases are made of cyclic oligosaccharides consisting of six (α-cyclodextrin), seven (β-cyclodextrin) or eight (γ-cyclodextrin) glucose units bonded through α-1,4-linkages. Regioselective alkylation and/or acylation of the hydroxyl groups leads to lipophilic phases with varying enantioselectivity, which are well suited for chiral analyses. Important advantage - many compounds can be analyzed without derivatization (however, for certain substances enantioselectivity can be favorably influenced by formation of derivatives). A large number of separations have been achieved, however, it is not possible to make a general prediction, which phase could solve a given separation task. Even for compounds with small structural differences or within homologous series the enantiodifferentiation can be quite different.
| Method | Gas chromatography (GC) |
| Type | GC column |
| Brand | LIPODEX |
| Phase | LIPODEX G |
| Composition | Octakis-(2,3-di-O-pentyl-6-O-methyl)-γ-cyclodextrin |
| USP listing | Not available or proprietary |
| Polarity | Not available or proprietary |
| Column inner diameter | 0.25 mm |
| Film thickness | Not available or proprietary |
| Column length | 25 m |
| Recommended application(s) | Dioxins, FAMEs, Gas chromatography, GC |
| Tmax isotherm | 220 °C |
| Tmax temp. program | 240 °C |
| Housing type | Wall coated open tubular (WCOT) capillary column, internal wall of capillary is coated with a very fine film of liquid stationary phase |
| Hardware | Fused Silica coated with polyimide coiled/wound on metal cage |
| Cage size | 7" (inch) |
| Integrated precolumn | No |
| Storage temperature | 15–25 °C / 59–77 °F |
| Scope of delivery | 1x GC column coiled/wound on metal cage, user manual, certificate of analysis |
| Gross weight (incl. packaging) | 262 g / 0.58 lbs |
| Packaging dimensions | 240 x 214 x 69 mm / 9.45 x 8.43 x 2.72 Inch |
| Hazardous material | No |
