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MEGA-DEX
MEGA-DEX columns are chiral GC columns for enantiomeric separations.
Technical Data
| Phase | Chiral selector | Inner diameter | Film thickness | Tmax |
| DAC Beta | diacetyl TBS β cyclodextrin | 0.25 mm | 0.15, 0.25 μm | 230 °C |
| DAC Gamma | diacetyl TBS γ cyclodextrin | 0.25 mm | 0.15, 0.25 μm | 230 °C |
| DET Beta | diethyl TBS β cyclodextrin | 0.25 mm | 0.15, 0.25 μm | 230 °C |
| DET Gamma | diethyl TBS γ cyclodextrin | 0.25 mm | 0.15, 0.25 μm | 230 °C |
| DMP beta | dimethyl-pentyl TBS β cyclodextrin | 0.25 mm | 0.15, 0.25 μm | 230 °C |
| DMT beta | dimethyl TBS β cyclodextrin | 0.25 mm | 0.15, 0.25 μm | 230 °C |
| B-SE | cyclodextrin derivative | N/A | N/A | 230 °C |
| B-03 | cyclodextrin derivative | N/A | N/A | 230 °C |
| G-01 | cyclodextrin derivative | N/A | N/A | 230 °C |
| G-03 | cyclodextrin derivative | N/A | N/A | 250 °C |
Applications
Resolutions of enantiomer separations measured by GC-MS
| Column | I.D. / mm | Film Thickness / µm | Lenght / m |
| MEGA-DEX DMT β | 0.25 | 0.15 | 25 |
| MEGA-DEX DET β | 0.25 | 0.15 | 25 |
| MEGA-DEX DAC β | 0.25 | 0.25 | 25 |
| MEGA-DEX DMP β | 0.25 | 0.25 | 25 |
| Compound | MEGA-DEX DMT β | MEGA-DEX DET β | MEGA-DEX DAC β | MEGA-DEX DMP β | Configuration |
| Camphene | 2.2 | 6.8 | - | 4.5 |
|
| β-Citronellene | - | 1.2 | - | 1.8 |
|
| β-Phellandrene | 3.8 | 6.1 | 0.9 | 3.0 |
|
| Limonene | 5.0 | 7.4 | - | 3.7 |
|
| α-Pinene | 2.9 | - | 1.2 | 3.5 |
|
| β-Pinene | 3.4 | 3.6 | 1.1 | 1.4 |
|
| Sabinene | 6.5 | 6.2 | - | 7.2 |
|
Resolutions of enantiomer separations of heterocycles measured by GC-MS
| Compound | MEGA-DEX DMT β | MEGA-DEX DET β | MEGA-DEX DAC β | MEGA-DEX DMP β | Configuration |
| Rose oxide | 4.2 | 2.0 | 1.6 | 2.1 | (2R4S) cis / (2S4R) cis |
| Rose oxide | - | 1.9 | - | - | (2R4R) trans / (2S4S) trans |
Resolutions of enantiomer separations of esters measured by GC-MS
| Compound | MEGA-DEX DMT β | MEGA-DEX DET β | MEGA-DEX DAC β | MEGA-DEX DMP β | Configuration |
| Butyl butyryl lactate | 1.6 | 1.7 | 2.2 | 1.4 |
|
| Dimethyl methylsuccinate | 2.2 | 1.1 | 4.0 | 2.0 |
|
| Ethyl 2-phenylbutyrate | 1.0 | 2.7 | 1.0 | 1.1 |
|
| Ethyl 3-hydroxybutyrate | 3.2 | - | 6.1 | 1.8 |
|
| Ethyl 3-hydroxyhexanoate | 3.0 | 1.5 | - | 3.7 |
|
| Ethyl 2-methylbutyrate | 2.9 | 5.1 | 2.7 | 2.2 |
|
| Ethyl 3-methyl-3-phenylglycidate | - | 2.5 | 1.0 | - | X / Y |
| Ethyl 3-methyl-3-phenylglycidate | 2.0 | 4.7 | - | 4.7 | Z / W |
| Phenylethyl methyl ethyl carbinol acetate | - | - | - | 1.1 |
|
| Isobornyl acetate | - | 1.4 | - | 1.7 |
|
| Isobornyl isobutyrate | 1.0 | 1.4 | - | 1.9 |
|
| Lavandulyl acetate | 1.6 | 2.3 | - | 1.4 |
|
| Linalyl acetate | 0.7 | 3.7 | 1.1 | - |
|
| Linalyl propionate | - | 1.2 | - | 0.4 |
|
| Menthyl acetate | 14.0 | 17.0 | 5.2 | 19.8 |
|
| cis 2-Methyl-3.-hexenyl butyrate | 1.8 | 2.3 | 1.0 | 1.0 |
|
| Methyl 3-hydroxyhexanoate | 5.7 | 6.8 | 3.0 | 7.8 |
|
| Nopyl acetate | - | - | - | 1.7 |
|
| Propyleneglycol butyrate | 2.3 | 1.4 | 1.2 | 5.3 |
|
| Styrallyl acetate | 15.6 | 56.3 | 3.0 | 38.3 |
|
| α-Terpinyl acetate | - | - | - | 1.1 |
|
Resolutions of the enantiomer separations of lactones measured by GC-MS
| Compound | MEGA-DEX DMT β | MEGA-DEX DET β | MEGA-DEX DAC β | MEGA-DEX DMP β | Configuartion |
| Aerangis lactone | 2.2 | 2.8 | 1.0 | 1.7 |
|
| δ-Hexalactone | - | 1.5 | 6.6 | - |
|
| δ-Heptalactone | 3.2 | 1.4 | 0.9 | 0.6 |
|
| δ-Octalactone | 1.8 | 3.4 | 7.5 | 0.9 |
|
| δ-Nonalactone | 1.5 | 1.0 | 4.4 | - |
|
| δ-Decalactone | 1.0 | 1.0 | 4.1 | - |
|
| δ-Undecalactone | 1.4 | 1.2 | 3.8 | - |
|
| δ-Dodecalactone | 1.1 | 1.1 | 3.5 | - |
|
| γ-Pentalactone | 7.6 | 20.5 | 21.4 | 5.5 |
|
| γ-Hexalactone | 6.0 | 13.6 | 15.7 | 3.4 |
|
| γ-Heptalactone | 8.9 | 13.9 | 4.2 | 4.7 |
|
| γ-Octalactone | 6.4 | 11.6 | 4.6 | 3.7 |
|
| γ-Nonalactone | 5.7 | 9.8 | 3.9 | 3.0 |
|
| γ-Decalactone | 4.0 | 7.2 | 3.7 | 2.2 |
|
| 3-Methyl-γ-decalactone | 6.4 | 8.0 | 4.5 | 5.1 |
|
| γ-Undecalactone | 3.4 | 6.1 | 3.6 | 1.7 |
|
| γ-Dodecalactone | 2.9 | 4.8 | 3.1 | 1.4 |
|
| γ-Tetradecalactone | 2.0 | 3.2 | 2.4 | 1.0 |
|
| γ-Pentadecalactone | 1.6 | 2.4 | 2.1 | 0.7 |
|
| ε-Decalactone | 5.0 | 8.0 | 2.6 | 1.8 |
|
| ε-Dodecalactone | 4.3 | 5.4 | 4.0 | 1.2 |
|
| Massoja decalactone | 1.2 | - | 5.7 | 0.7 |
|
| Massoja dodecalactone | 1.2 | - | 5.2 | - |
|
| Whiskey lactone | 11.2 | 11.2 | 5.1 | 5.2 | X / Y |
| Whiskey lactone | 2.8 | 1.4 | 6.3 | - | Z / W |
Resolutions of the enantiomer separations of ketones measured by GC-MS
| Compound | MEGA-DEX DMT β | MEGA-DEX DET β | MEGA-DEX DAC β | MEGA-DEX DMP β | Configuration |
| Camphorquinone | 2.2 | 3.8 | 6.5 | - |
|
| Camphor | 2.6 | 3.7 | 7.8 | - |
|
| 3,6-dimethylocta-2-en-6-one | 1.7 | 5.0 | 2.4 | 3.2 |
|
| 1,8-Epoxy-p-menthan-3.one | 12.5 | 13.8 | 4.8 | 11.6 |
|
| α-Ionone | 5.1 | 4.9 | 5.4 | 7.6 |
|
| Isomenthone | 10.4 | - | 2.4 | - |
|
| Menthone | 1.5 | 2.2 | 2.8 | - |
|
| 3-Methylcyclohexanone | 1.7 | 5.3 | 1.0 | 1.3 |
|
| 3-Oxocineole | 17.0 |
| 20.7 | 11.0 |
|
| Piperitone | 6.0 | 8.8 | 2.8 | 5.0 |
|
| Pulegone | 4.6 | 3.8 | - | 2.7 |
|
| Verbenone | 2.9 | 3.5 | 1.8 | 1.1 |
|
Resolutions of the enantiomer separations of aldehydes measured by GC-MS
| Compound | MEGA-DEX DMT β | MEGA-DEX DET β | MEGA-DEX DAC β | MEGA-DEX DMP β | Configuration |
| Citronellal | - | 1.1 | 3.1 | 1.3 |
|
| Hydroxycitronellal | 1.0 | 1.1 | 2.9 | - |
|
| Perillyl aldehyde | 6.4 | 8.2 | 1.9 | 4.1 |
|
Resolutions of the enantiomer separations of alcohols measured by GC-MS
| Compound | MEGA-DEX DMT β | MEGA-DEX DET β | MEGA-DEX DAC β | MEGA-DEX DMP β | Configuration |
| 2-Butanol | - | - | 2.2 | - |
|
| Citronellol | 1.2 | 1.3 | 1.8 | - |
|
| 3-Hexanol | - | - | 1.7 | 0.9 |
|
| Fenchyl alcohol | 2.7 | 8.6 | 7.0 | 4.2 |
|
| 1-Phenylethanol | 6.0 | 6.1 | 8.0 | 9.0 |
|
| 1-Phenyl-2 pentanol | 4.1 | 1.1 | 3.0 | 3.3 |
|
| 1-Phenil 1-propanol | 2.0 | 3.9 | 4.8 | 5.3 |
|
| 2-Phenil-1-propanol | 3.2 | 3.1 | 7.6 | 2.0 |
|
| Geosmin | 1.7 | 1.3 | 1.0 | 3.4 |
|
| Isoborneol | 3.6 | 3.7 | 9.7 | 2.1 |
|
| Isomenthol | 4.4 | 8.6 | 8.8 | 6.3 |
|
| Isopinocampheol | 5.6 | 1.8 | 2.0 | - |
|
| Lavandulol | 8.6 | 13.7 | - | 4.5 | S, R |
| Linalool | 3.9 | 7.4 | 1.4 | 5.3 |
|
| Linalool oxide | 9.6 | - | - | 13.9 | (+) trans / (-) trans |
| Linalool oxide | 4.8 | - | - | 9.6 | (+) cis / (-) cis |
| Menthol | 1.3 | 1.3 | 5.0 | 1.3 |
|
| 2-Methylbutanol | 1.2 | 2.4 | 2.8 | 1.2 |
|
| 6-Methyl-5hepten-2-ol | 6.3 | 6.7 | 1.5 | 8.2 |
|
| 4-Methyl-1-phenylpentanol | 3.5 | 2.3 | 7.0 | 2.9 |
|
| Neoisomenthol | 11.0 | 17.4 | 4.0 | 10.1 |
|
| Neomenthol | 6.9 | 6.4 | 4.6 | 3.1 |
|
| Nerolidol | 2.2 | 4.3 | - | 2.2 | X cis / Y cis |
| Nerolidol | 2.7 | 4.5 | - | 3.2 | Z trans / W trans |
| 1-Octen-3-ol | 1.4 | 1.2 | 1.4 | - |
|
| 1,3-Octanediol | 1.0 | 1.2 | 2.7 | 1.6 |
|
| 2-Octanol | 1.0 | 1.0 | - | - |
|
| 3-Octanol | - | 1.0 | 1.5 | 0.4 |
|
| Patchenol | - | - | - | 3.9 |
|
| Perillyl alcohol | - | - | - | 3.5 |
|
| Terpinen-4-ol | 2.4 | 1.7 | 22.8 | 4.0 |
|
| α-Terpineol | 5.1 | 6.9 | 2.7 | 1.9 |
|
| Tetrahydrolinalool | 4.2 | 7.0 | - | 6.6 |
|
Resolutions of enantiomer separations of acids measured by GC-MS
| Compound | MEGA-DEX DMT β | MEGA-DEX DET β | MEGA-DEX DAC β | MEGA-DEX DMP β | Configuration |
| Citronellic acid | 1.7 | 1.1 | - | - |
|
| Chrysanthemic acid | 8.4 | 7.5 | - | 11.2 |
|
| 2-Phenylpropionic acid | - | 2.0 | 3.4 | 3.6 |
|
| 2-Methylbutyric acid | 2.1 | 1.5 | 1.0 | 4.5 |
|
Downloads
Brochures
MEGA GC Columns Catalogue 2018
Applications
MEGA dex Chrial Applications
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