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Supelco

α-DEX™ 225

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
eCl@ss:
32119290

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-α-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

separation technique

chiral

Related Categories

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

Chem/Phys Resistance

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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Certificates of Analysis (COA)

Lot/Batch Number
272416-06
272416-04
272416-03
272416-01
271800-08

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Scott RPW.
Introduction to Analytical Gas Chromatography, 101-102 (1997)

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