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24308

Supelco

β-DEX 325

L × I.D. 30 m × 0.25 mm, df 0.25 μm

Synonyme(s) :

β-DEX 325, 30 M 0,25 MM 0,25 UM

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About This Item

Code UNSPSC :
41115710
eCl@ss :
32119290

Matériaux

fused silica

Description

GC capillary column

Paramètres

30-230 °C temperature

Valeur bêta

250

df

0.25 μm

Technique(s)

gas chromatography (GC): suitable

L × D.I.

30 m × 0.25 mm

Groupe de la matrice active

non-bonded; 25% 2,3-di-O-methyl-6-O-TBDMS-β-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)

Type de colonne

capillary chiral

Technique de séparation

chiral

Description générale

The chiral stationary phase in β-DEX 325 columns contains 2,3-di-O-methyl-6-0-TBDMS-β-cyclodextrin embedded in an intermediate polarity phase. The Supelco β-DEX 325 is similar in both chemistry and use to the CHIRALDEX B-DM phase, the main difference being the concentration of the dimethyl-derivatized cyclodextrin that is doped into the polysiloxane carrier.

Application

ß-DEX-325 column was used in gas-liquid chromatography (GLC), for determination of (R)-1-O-acetyl-2-ethyl-1,3-propanediol, formed from 2-Ethyl-1,3-propanediol 1 and its related di-O-acetate, by partial chemoenzymatic acetylation and deacetylation, by Pseudomonas fluorescens lipase. ß -Dex-325 capillary column was also used for resolving 8-acetoxylinalool enantiomers, in an experimental study done in order to study the origin of the enantioselectivity in the biosynthesis of the lilac compounds in Actinidia arguta flowers.

Résistance chim./phys.

Temp. Limites: 30°C à 230°C

Autres remarques

We offer a variety of chromatography accessories including analytical syringes

Informations légales

DEX is a trademark of Sigma-Aldrich Co. LLC

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Certificats d'analyse (COA)

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Consulter la Bibliothèque de documents

A J Matich et al.
Phytochemistry, 68(13), 1746-1751 (2007-05-01)
Biosynthesis of lilac compounds in 'Hortgem Tahi' kiwifruit (Actinidia arguta) flowers was investigated by treating inflorescences with d(5)-linalool. The incorporation of the deuterium label into 8-hydroxylinalool, 8-oxolinalool, the lilac aldehydes, alcohols, and alcohol epoxides was followed by GC-MS and enantioselective
Chiral building-blocks by chemoenzymatic desymmetrization of 2-ethyl-1, 3-propanediol for the preparation of biologically active natural products.
Isidoro I
Tetrahedron Asymmetry, 10 (3), 449-455 (1999)

Chromatograms

suitable for GC

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