24310
α-DEX™ 120
L × I.D. 30 m × 0.25 mm, df 0.25 μm
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About This Item
EC Number:
262-373-8
UNSPSC Code:
41115710
NACRES:
SB.54
material
fused silica
description
GC capillary column
analyte chemical class(es)
alcohols, amino acids, amphetamines, ketones, terpenes
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
Chiral, non-bonded; 20% permethylated α-cyclodextrin in SPB-35 poly(35% diphenyl/65% 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
separation technique
chiral
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.
Containing permethylated α-cyclodextrin embedded in an intermediate polarity stationary phase, Supelco α-DEX 120 columns provide unique selectivity for enantiomeric separations of small molecules. They are also recommended for separating positional isomers (phenols, xylenes, etc.).
Application
α-DEX™ 120 was used in a GC column, in an experiment conducted to study the addition of catalytic enantioselective diethylzinc to a-substituted aldehyde, in presence of enantiopure ligand. It was also used to pack chiral column durin GC analysis, in an experiment to investigate lipase-mediated desymmetrization of glycerol with aliphatic and aromatic anhydrides.
Features and Benefits
Temp. Limits:
- 30 °C to 230 °C
Other Notes
We offer a variety of chromatography accessories including analytical syringes
Legal Information
DEX is a trademark of Sigma-Aldrich Co. LLC
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Lipase-mediated desymmetrization of glycerol with aromatic and aliphatic anhydrides.
Batovska D
Tetrahedron Asymmetry, 15 (22), 3551-3559 (2004)
A superior, readily available enantiopure ligand for the catalytic enantioselective addition of diethylzinc to a-substituted aldehydes.
Lluis S
The Journal of Organic Chemistry, 63 (20), 7078-7082 (1998)
Scott RPW.
Introduction to Analytical Gas Chromatography, 101-102 (1997)
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 24310 | 04061833659434 |