Properties:
| RelatedCategories | Analytical/Chromatography,AstecCHIRALDEXB-DA,CapillaryGCColumnsandGuardColumns/RetentionGaps,CapillaryGCColumns,byname,ChiralCapillaryGCColumns, |
| material | fusedsilica |
| description | GCcapillarycolumn |
| packaging | pkgof1 ea |
| Betavalue | 500 |
| df | 0.12 μm |
| application(s) | gaschromatography(GC):suitable |
| L×I.D. | 30 m×0.25 mm |
| matrixactivegroup | non-bonded;2,6-di-O-pentyl-3-methoxyderivativeofβ-cyclodextrinphase |
| columntype | capillarychiral |
| modeofchromatography | Chiral |
Description:
Chem/PhysResistance
Temp.Limits:
• -10°Cto200°Cisothermal,220°Cprogrammed
Generaldescription
CHIRALDEXB-DArequiresthatanalytespossessaminimumoftworingstructures,oneofwhichisunsaturated(aromatic)α,βtothestereogeniccenter.Examplesincludefluoxetine,methylphenidateandchloropheniramine.InclusioncomplexationorproperfitbetweentheanalyteandcyclodextrincavityisthedominantenantioselectivitymechanismfortheDAseries.Theremustbeanincludablegroupαorβtothestereogeniccenterforchiralrecognition.SinceCHIRALDEXDAcolumnsmosteffectivelyseparatemulti-ringanalytes,analysistemperaturesareoftenhigherthan150°C.Enantioselectivityhasbeenobservedattemperatures>200°C(fluoxetineacetylderivative).
LegalInformation
AstecisaregisteredtrademarkofSigma-AldrichCo.LLC
CHIRALDEXisaregisteredtrademarkofSigma-AldrichCo.LLC
OtherNotes
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