Sigma-Aldrich Fs Cap Beta-Dex 225 30m .2

Material

fused silica

Quality Level

100

Description

GC capillary column

Parameter

30-230 °C temperature

Beta Value

250

Df

0.25 μm

Technique(S)

gas chromatography (GC): suitable

L × I.D.

30 m × 0.25 mm

Matrix Active Group

non-bonded; 25% 2,3-di-O-acetyl-6-O-TBDMS-β-cyclodextrin in SPB-20 poly(20% phenyl/80% dimethylsiloxane) phase

Application(S)

agriculture
chemicals and industrial polymers
cleaning products
clinical
cosmetics
environmental
flavors and fragrances
food and beverages
forensics and toxicology
life science and biopharma
personal care
pharmaceutical (small molecule)

Related Categories

GC Columns, Accessories & Adsorbents

General 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.

Chem/Phys Resistance

Temp. Limits:

• 30 °C to 230 °C

Other Notes

We offer a variety of chromatography accessories including analytical syringesDEX is a trademark of Sigma-Aldrich Co. LLC