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MilliporeSigma™ Supelco™ β-DEX™ 225 Capillary GC Column, df 0.25 μm

Catalog No. 111003261
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Length (Metric):
30 m
Catalog No. Length (Metric)
111003261 30 m
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Catalog No. 111003261

Supplier: MilliporeSigma™ Supelco™ 24348

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Description

Capillary GC column is also known as open tubular column. The carrier gas flows through the central aperture and is unrestricted throughout the length of the column.

The Supelco β-DEX 225 is a modified form of the β-DEX 325 phase, and employs acetyl derivatives at the 2,3-positions instead of more traditional methyl derivatives. The chiral stationary phase in β-DEX 225 columns contains 2,3-di-O-acetyl-6-0-TBDMS-β-cyclodextrin embedded in an intermediate polarity phase. These columns provide unique selectivity for enantiomeric separations of small molecules: alcohols, aldehydes (e.g., 2-phenylpropionaldehyde), esters (e.g. methyl malate, methyl lactate), flavor compounds and ketones.

Specifications

Type Capillary Chiral
Product Line DEX
Diameter (Metric) Inner 0.25 mm
For Use With (Application) Gas Chromatography (GC)
Film Thickness 0.25 μm
Length (Metric) 30 m
Material Fused Silica
Packing Material 25% 2,3-di-O-acetyl-6-O-TBDMS-β-cyclodextrin in SPB-20 poly(20% phenyl/80% dimethylsiloxane)

DEX is a trademark of Sigma-Aldrich Co. LLC