Sigma-Aldrich Fs Cap Gamma-Dex 225 30m .

Material

fused silica

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-γ-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)

Column Type

capillary chiral

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 chiral stationary phase in γ-DEX 225 columns contains 2,3-di-O-acetyl-6-0-TBDMS-γ-cyclodextrin embedded in an intermediate polarity phase.

Application

γ-DEX^™225 GC column was used during asymmetric highly enantioselective copper catalytic conjugate addition of Et₂Zn to enones, using monodentate chiral spiro phosphoramidite ligands.

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