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Gas Chromatography
CHIRALDEX PN
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Astec Products | Technical Resources | Chiral Services
Ordering Information
Astec CHIRALDEX G-PN capillary GC columns incorporate a phase consisting of a 2,6-di-O-pentyl-3-propionyl derivative of γ-cyclodextrin. This phase exhibits high selectivity for lactones and aromatic amines. It is also suitable for epoxide separations. Additionally, the analysis of styrene oxide can be accomplished on this phase (this analyte degrades on the TA phases).
| Type / Name |
Derivative |
γ-Phase |
Max. Temp.(°C)
Isothermal |
Max. Temp.(°C)
Programmed |
| PN / Propionyl |
2,6-di-O-pentyl-3-propionyl |
G-PN |
200 |
220 |
Features
- Suitable for epoxide separations
- High selectivity for lactones
- High selectivity for aromatic amines (i.e. amphetamine, methamphetamine)
- More stable to moisture than the TA phases
Mechanism Observations
There is little evidence of inclusion formation. Retention increases with increased chain length of analyte. This allows for efficient separation of a series of homologs.
Size Selectivity
The G-PN shows very little size selectivity.
Specific Classes of Compounds Separated
Use this table as a reference to help determine the proper column based on the analyte(s) of interest.
| Type |
Compound Class |
| G-PN |
Epoxides, secondary amines, higher alcohols >C4, esters, lactones, and diols. |
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