Macherey-Nagel™ HYDRODEX™ β-TBDAc Capillary Columns for GC

Enables many compounds to be analyzed without derivatization. Macherey-Nagel™ HYDRODEX™ β-TBDAc Capillary Columns for GC are phases with 7 β-cyclodextrin glucose units for enantiomer separation in gas chromatography. This hydrophilic phase with short polar ligants is a chemically non-bonded phase.

Overview
Brand: Macherey-Nagel™

Manufacturer Part Number: 723384.50

UNSPSC: 41115710

Code: 50

Additional Details:
Additional Details: Weight: 0.01000kg



Alerts: 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. 10427862

Quantity Price
1 £ 2135.0 / Each
Estimated Shipment
16-05-2017
Add to basket


Description and Specification

Specification

Technique Gas chromatography
Polarity Polar
Max. Temperature For isothermal operations: 220°C
For short isotherms in a temperature program: 240°C
Packing Material Hydrodex β-TBDAc
Stationary Phase Hydrodex β-TBDAc
Diameter (Metric) Inner 0.25mm
Quantity 1Each
Product Type GC Capillary Column
Length (Metric) 50m
Diameter 0.4mm
For Use With (Application) For GC Enantiomer Separation

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

It is not possible to make a general prediction about which HYDRODEX™ 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 seven β-cyclodextrin glucose units bonded through α-1,4-linkages
  • heptakis-(2,3-di-O-acetyl-6-O-t-butyldimethylsilyl)-β-cyclodextrin
  • Ligands: R2=R3=acetyl, R6=t-butyldimethylsilyl; n=2
  • Due to the high melting point of the phases, they are diluted with optimized polysiloxanes
  • Recommended for alcohols, esters, ketones, aldehydes, δ-lactones