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  6. Macherey-Nagel™ LIPODEX™ E Capillary Columns for GC

Macherey-Nagel™ LIPODEX™ E Capillary Columns for GC

Product Code. 10741992 Shop All Macherey-Nagel Products
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Length (Metric):
10 m
25 m
50 m
Diameter (Metric) Inner:
0.1 mm
0.25 mm
Unit Size:
Each
Pack of 25
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Product Code. Length (Metric) Diameter (Metric) Inner unitSize
10741992 25 m 0.25 mm Pack of 25
10410512 10 m 0.1 mm Each
10105181 50 m 0.25 mm Each
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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.
Product Code. 10741992 Supplier Macherey-Nagel™ Supplier No. 723368.25
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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.

Descripción

Enables many compounds to be analyzed without derivatization. Macherey-Nagel™ LIPODEX™ E 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.

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-(2,6-di-O-pentyl-3-O-butyryl)-γ-cyclodextrin
  • Ligands: R2=R6=pentyl, R3=butyryl; n=3
  • Recommended for α-amino acids, α- and β-hydroxycarboxylic acid esters, alcohols (TFA), diols (TFA), ketones, pheromones (cyclic acetals), amines, alkyl halides, lactones

Especificaciones

For Use With (Application) Enantiomer Separation
Length (Metric) 25 m
Packing Material Lipodex™ E
Polarity Non polar
Quantity 1 Each
Diameter (Metric) 0.4 mm
Stationary Phase Lipodex™ E
Type GC Capillary Column
Diameter (Metric) Inner 0.25 mm
Max. Temperature (Metric) For isothermal operations: 200°C, For short isotherms in a temperature program: 220°C
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