72023AST

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

L × I.D. 30 m × 0.25 mm, d_f 0.12 μm

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

Propriedades

• Materiais: fused silica
• descrição: GC capillary column
• embalagem: pkg of 1 ea
• Parâmetros: -10-200 °C temperature (isothermal); -10-220 °C temperature (programmed)
• Valor beta: 500
• df: 0.12 μm
• técnica(s): gas chromatography (GC): suitable
• C × D.I.: 30 m × 0.25 mm
• Grupo ativo da matriz: non-bonded; 2,6-di-O-pentyl-3-methoxy derivative of β-cyclodextrin phase
• aplicação(ões): 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)
• tipo de coluna: capillary chiral
• técnica de separação: chiral

Descrição

Descrição geral

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).

Resistência química/física

Temp. Limits:

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

Outras notas

We offer a variety of chromatography accessories including analytical syringes

Informações legais

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

CHIRALDEX is a trademark of Sigma-Aldrich Co. LLC