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γ-DEX 225

L × I.D. 30 m × 0.25 mm, df 0.25 μm

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Synonym(s):
γ-DEX 225, 30M .25MM .25UM
eCl@ss:
32119290

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

separation technique

chiral

storage temp.

2-8°C

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243112430624348
vibrant-m

24312

γ-DEX 225

vibrant-m

24311

α-DEX 225

vibrant-m

24306

γ-DEX 325

vibrant-m

24348

β-DEX 225

df

0.25 μm

df

0.25 μm

df

0.25 μm

df

0.25 μm

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

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

matrix active group

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

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

technique(s)

gas chromatography (GC): suitable

technique(s)

gas chromatography (GC): suitable

technique(s)

gas chromatography (GC): suitable

technique(s)

gas chromatography (GC): suitable

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)

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)

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)

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)

material

fused silica

material

fused silica

material

fused silica

material

fused silica

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 syringes

Legal Information

DEX is a trademark of Sigma-Aldrich Co. LLC

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Customers Also Viewed

Slide 1 of 3

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Highly enantioselective copper-catalyzed conjugate addition of diethylzinc to enones using chiral spiro phosphoramidites as ligands.
Zhou H
The Journal of Organic Chemistry, 68 (4), 1582-1584 (2003)
Scott RPW.
Introduction to Analytical Gas Chromatography, 101-102 (1997)

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