72023AST

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

L × I.D. 30 m × 0.25 mm, d_f 0.12 μm

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

Propriétés

• Matériaux: fused silica
• Niveau de qualité: 100
• Description: GC capillary column
• Conditionnement: pkg of 1 ea
• Paramètres: -10-200 °C temperature (isothermal); -10-220 °C temperature (programmed)
• Valeur bêta: 500
• df: 0.12 μm
• Technique(s): gas chromatography (GC): suitable
• L × D.I.: 30 m × 0.25 mm
• Groupe de la matrice active: 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)
• Type de colonne: capillary chiral
• Technique de séparation: chiral

Description

Description générale

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).

Résistance chim./phys.

Temp. Limits:

• -10 °C to 200 °C isothermal, 220 °C programmed

Autres remarques

We offer a variety of chromatography accessories including analytical syringes

Informations légales

Astec is a registered trademark of Merck KGaA, Darmstadt, Germany

CHIRALDEX is a trademark of Sigma-Aldrich Co. LLC