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72023AST

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Astec® CHIRALDEX B-DA Capillary GC Column

L × I.D. 30 m × 0.25 mm, df 0.12 μm

Synonym(s):

GC column, chiral, beta-dextran

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About This Item

UNSPSC Code:
41115710
NACRES:
SB.54

material

fused silica

description

GC capillary column

packaging

pkg of 1 ea

parameter

-10-200 °C temperature (isothermal)
-10-220 °C temperature (programmed)

Beta value

500

df

0.12 μm

technique(s)

gas chromatography (GC): suitable

L × I.D.

30 m × 0.25 mm

matrix active group

non-bonded; 2,6-di-O-pentyl-3-methoxy derivative of β-cyclodextrin phase

application(s)

agriculture
chemicals and industrial polymers
cleaning products
clinical
cosmetics
environmental
flavors and fragrances
food and beverages
forensics and toxicology
life science and biopharma
personal care
pharmaceutical (small molecule)

column type

capillary chiral

separation technique

chiral

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General description

CHIRALDEX B-DA requires that analytes possess a minimum of two ring structures, one of which is unsaturated (aromatic) α, β to the stereogenic center. Examples include fluoxetine, methylphenidate and chloropheniramine. Inclusion complexation or proper fit between the analyte and cyclodextrin cavity is the dominant enantioselectivity mechanism for the DA series. There must be an includable group α or β to the stereogenic center for chiral recognition. Since CHIRALDEX DA columns most effectively separate multi-ring analytes, analysis temperatures are often higher than 150°C. Enantioselectivity has been observed at temperatures >200°C (fluoxetine acetyl derivative).

Chem/Phys Resistance

Temp. Limits:
  • -10 °C to 200 °C isothermal, 220 °C programmed

Other Notes

We offer a variety of chromatography accessories including analytical syringes

Legal Information

Astec is a registered trademark of Merck KGaA, Darmstadt, Germany
CHIRALDEX is a trademark of Sigma-Aldrich Co. LLC

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Structurally informative response patterns of some monoterpenoids found in volatile oils to gas chromatography on two commercial dipentylated cyclodextrin phases
Betts, T.J.
Journal of Chromatography A, 639 (2), 366-370 (1993)

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