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77022AST Supelco

Astec® CHIRALDEX® B-DM Capillary GC Column

L × I.D. 20 m × 0.25 mm, df 0.12 μm



Related Categories All Gas Chromatography Columns, Analytical/Chromatography, Astec CHIRALDEX B-DM, Capillary GC Columns, Capillary GC Columns, by name,
material   fused silica
description   GC capillary column
packaging   pkg of 1 ea
parameter   -10-200 °C temperature (isothermal)
  -10-220 °C temperature (programmed)
Beta value   500
df   0.12 μm
application(s)   gas chromatography (GC): suitable
L × I.D.   20 m × 0.25 mm
matrix active group   non-bonded; 2,3-di-O-methyl-6-t-butyl silyl derivative of β-cyclodextrin phase
Featured Industry   Agriculture
Chemicals and Industrial Polymers
Cosmetics, Personal Care, and Cleaning Products
Flavors and Fragrances
Food and Beverages
Forensics and Toxicology
Life Science and Biopharma
Pharmaceutical (small molecule)
column type   capillary chiral
separation technique   chiral


General description

Through special derivatization techniques, the concentration of the cyclodextrin in the CHIRALDEX B-DM has been substantially increased in the polysiloxane carrier. This phase is very useful for a number of free acids and bases. The B-DM is able to perform most of the separations done on a beta-permethylated phase, but with higher resolution. The selectivity of the B-DM covers applications of both the B-PM and B-PH phases, although with superior performance.

Chem/Phys Resistance

Temp. Limits:
• -10 °C to 200 °C isothermal, 220 °C programmed

Other Notes

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Legal Information

Astec is a registered trademark of Sigma-Aldrich Co. LLC

CHIRALDEX is a registered trademark of Sigma-Aldrich Co. LLC

Safety & Documentation

Safety Information

Safety Information for this product is unavailable at this time.


Certificate of Analysis

Protocols & Articles


Astec® CHIRALDEX® Column Selection

Certain phases are more selective for given molecular structures. While many compounds can be enantiomerically resolved on multiple Astec CHIRALDEX phases, often an advantage can be found in selectiv...
Keywords: Chiral chromatography, Chromatography, Clinical, Derivatizations, Gas chromatography, Metabolites, Pharmaceutical, Separation

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How to Choose a Capillary GC Column

An optimized chromatographic separation begins with the column. The selection of the proper capillary column for any application should be based on four significant factors: stationary phase, column ...
How to Choose a Capillary GC Column
Keywords: Chromatography, Condensations, Gas chromatography, Immobilization, Mass spectrometry, Pesticides, Separation, Size-exclusion chromatography, Solid phase microextractions, Solvents, Vaporization

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