72023AST

Astec^® CHIRALDEX^™ B-DA Capillary GC Column

L × I.D. 30 m × 0.25 mm, d_f 0.12 μm

• Synonym(s): GC column, chiral, beta-dextran
• UNSPSC Code: 41115710
• NACRES: SB.54

Properties

• material: fused silica
• Quality Level: 100
• 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

Description

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