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Macherey-Nagel™ LIPODEX™ G Capillary Columns for GC

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

Brand:  Macherey-Nagel™ 723379.50

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Product Code. 10470122

  • 24105.00 NOK / Each

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Alert:

Water as solvent is strictly forbidden for all cyclodextrin phases. It is recommended to dry the sample and dissolve it in an appropriate nonpolar solvent.

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Description

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 eight γ-cyclodextrin glucose units bonded through α-1,4-linkages
  • octakis-(2,3-di-O-pentyl-6-O-methyl)-γ-cyclodextrin
  • Ligands: R2=R3=pentyl, R6=methyl; n=3
  • Recommended for menthol isomers, ketones, alcohols, carboxylic acid esters, terpenes
Specifications

Specifications

For isothermal operations: 220°C, For short isotherms in a temperature program: 240°C
GC Capillary Column
Lipodex™ G
50 m
Non polar
0.4 mm
0.25 mm
Enantiomer Separation
Lipodex™ G
1 Each
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