24348

β-DEX^™ 225

L × I.D. 30 m × 0.25 mm, d_f 0.25 μm

• Code UNSPSC : 41115710
• eCl@ss : 32119290

Propriétés

• Matériaux: fused silica
• Niveau de qualité: 100
• Description: GC capillary column
• Paramètres: 30-230 °C temperature
• Valeur bêta: 250
• df: 0.25 μm
• Technique(s): gas chromatography (GC): suitable
• L × D.I.: 30 m × 0.25 mm
• Groupe de la matrice active: non-bonded; 25% 2,3-di-O-acetyl-6-O-TBDMS-β-cyclodextrin in SPB-20 poly(20% phenyl/80% dimethylsiloxane) 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

Capillary GC column is also known as open tubular column. The carrier gas flows through the central aperture and is unrestricted throughout the length of the column.

The Supelco β-DEX 225 is a modified form of the β-DEX 325 phase, and employs acetyl derivatives at the 2,3-positions instead of more traditional methyl derivatives. The chiral stationary phase in β-DEX 225 columns contains 2,3-di-O-acetyl-6-0-TBDMS-β-cyclodextrin embedded in an intermediate polarity phase. These columns provide unique selectivity for enantiomeric separations of small molecules: alcohols, aldehydes (e.g., 2-phenylpropionaldehyde), esters (e.g. methyl malate, methyl lactate), flavor compounds and ketones.

Résistance chim./phys.

Temp. Limites: 30°C à 230°C

Autres remarques

We offer a variety of chromatography accessories including analytical syringes

Informations légales

DEX is a trademark of Sigma-Aldrich Co. LLC