Macherey-Nagel™ LIPODEX™ A Capillary Columns for GC

Enables many compounds to be analyzed without derivatization. Macherey-Nagel™ LIPODEX™ A Capillary Columns for GC are phases with six α-cyclodextrin glucose units for enantiomer separation in gas chromatography. This lipophilic phase with long nonpolar ligants is a chemically non-bonded phase.

Product Code	Brand	Length (Metric)
10127300	Macherey-Nagel™ 723360.25	25 m
10527342	Macherey-Nagel™ 723360.50	50 m

Description

A major advantage of LIPODEX columns are that many compounds can be analyzed without derivatization. However, for certain substances, enantioselectivity can be favorably influenced by formation of derivatives. Regioselective alkylation and/or acylation of the hydroxyl groups leads to lipophilic phases with varying enantioselectivity, which are well suited for GC enantiomer analyses.

It is not possible to make a general prediction about which LIPODEX™ phase could solve a given separation task. Even for compounds with small structural differences or within homologous series, the enantiodifferentiation can be quite different.

• Base material: cyclic oligosaccharides consisting of six α-cyclodextrin glucose units bonded through α-1,4-linkages
• hexakis-(2,3,6-tri-O-pentyl)- α-cyclodextrin
• Ligands: R2=R3=R6=pentyl; n=1
• Recommended for carbohydrates, polyols, diols, hydroxycarboxylic acid esters, (epoxy‑) alcohols, glycerol derivatives, spiroacetals, ketones, alkyl halides

Specifications

• Diameter (Metric): 0.4 mm
• Stationary Phase: Lipodex™ A
• Max. Temperature: For isothermal operations: 200°C, For short isotherms in a temperature program: 220°C
• Packing Material: Lipodex™ A
• Quantity: 1 Each

• Diameter (Metric) Inner: 0.25 mm
• Type: GC Capillary Column
• For Use With (Application): Enantiomer Separation
• Polarity: Non polar