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73033AST
Astec® CHIRALDEX™ G-TA Capillary GC Column
L × I.D. 30 m × 0.25 mm, df 0.12 μm
Sinónimos:
GC column, chiral, gamma-dextran
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About This Item
UNSPSC Code:
41115710
NACRES:
SB.54
En este momento no podemos mostrarle ni los precios ni la disponibilidad
Productos recomendados
material
fused silica
Quality Level
description
GC capillary column
packaging
pkg of 1 ea
parameter
-10-180 °C temperature (isothermal or programmed)
Beta value
500
df
0.12 μm
technique(s)
gas chromatography (GC): suitable
L × I.D.
30 m × 0.25 mm
matrix active group
non-bonded; 2,6-di-O-pentyl-3-trifluoroacetyl derivative of γ-cyclodextrin 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
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General description
Astec® CHIRALDEX G-TA is the first choice in the Group 1 CSPs (Surface Interactions, Complex Derivatives). This phase has been shown to be the most broadly-selective phase for the pharmaceutical industry, especially for the analysis of chiral intermediates and drug studies in various stages of clinical trials. Separations occur without the inclusion mechanism and are typically faster and more efficient than most chiral stationary phases. G-TA has also been used to separate parent drug enantiomers and their metabolites. G-TA has its highest selectivity for oxygen-containing analytes like alcohols, diols and polyols as the free alcohol and as an acyl derivative; amines as acyl derivatives; amino alcohols, halogens (Cl>Br>F), amino acids, hydroxy acids, lactones, furans and pyrans. It is also highly selective for halogenated compounds.
Application
Astec® CHIRALDEX™ G-TA (2,6-di-O-pentyl-3-trifluoroacetyl-γ-cyclodextrin) derivatized cyclodextrin chiral stationary phase may be used in capillary gas chromatography for separation of four isomers from 7 racemic sulfinate esters.[1] It was used in an experimental study done for cloning and characterization of three epoxide hydrolases identified by analyzing open reading frames (ORFs) of a marine bacterium, Erythrobacter litoralis HTCC2594.[2] It was also used in HPLC and GC analyses of the conversion of epoxides during enantioselectivity of epoxide hydrolase from Agrobacterium radiobacter (EchA) using error-prone PCR and DNA shuffling.[3]
Chem/Phys Resistance
Temp. Limits:
- -10 °C to 180 °C isothermal and programmed
Other Notes
We offer a variety of chromatography accessories including analytical syringes
Legal Information
Astec is a registered trademark of Merck KGaA, Darmstadt, Germany
CHIRALDEX is a trademark of Sigma-Aldrich Co. LLC
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Jung-Hee Woo et al.
Applied microbiology and biotechnology, 76(2), 365-375 (2007-06-02)
Previously, we reported that ten strains belonging to Erythrobacter showed epoxide hydrolase (EHase) activities toward various epoxide substrates. Three genes encoding putative EHases were identified by analyzing open reading frames of Erythrobacter litoralis HTCC2594. Despite low similarities to reported EHases
Bert van Loo et al.
Chemistry & biology, 11(7), 981-990 (2004-07-24)
The enantioselectivity of epoxide hydrolase from Agrobacterium radiobacter (EchA) was improved using error-prone PCR and DNA shuffling. An agar plate assay was used to screen the mutant libraries for activity. Screening for improved enantioselectivity was subsequently done by spectrophotometric progress
The asymmetric hydrogenation of 2-phenethylacrylic acid as the key step for the enantioselective synthesis of Citralis Nitrile?
Scrivanti, Alberto, et al.
Tetrahedron Letters, 47 (52), 9261-9265 (2006)
The synthesis of enantioenriched a-hydroxy esters
Gu, Xin, et al.
Tetrahedron Asymmetry, 25 (24), 1573-1580 (2014)
Isolation of racemic 2,4-pentanediol and 2,5-hexanediol from commercial mixtures of racemic and meso isomers by way of cyclic sulfites.
Caron, Gaetan; Kazlauskas, R.J.
Tetrahedron Asymmetry, 5 (4), 657-664 (1994)
Artículos
Chromatographic enantiomeric separation of amino acids, like proline, is described for chiral GC analysis after derivatization.
Chromatographic enantiomeric separation of amino acids, like proline, is described for chiral GC analysis after derivatization.
Chromatographic enantiomeric separation of amino acids, like proline, is described for chiral GC analysis after derivatization.
Chromatographic enantiomeric separation of amino acids, like proline, is described for chiral GC analysis after derivatization.
Chromatograms
suitable for GCsuitable for GCsuitable for GCsuitable for GCMostrar más-
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What is the regeneration procedure for Chiraldex TA columns?
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The regeneration procedure for ChiraldexTA columns is located in Supelco brochure, T407123 (JCH), A Guide to Using Cyclodextrin Bonded Phases for Chiral Separations by Capillary Gas Chromatography, on pages 8 and 9. These pages are attached.
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