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24308 Supelco

β-DEX™ 325

L × I.D. 30 m × 0.25 mm, df 0.25 μm

DOWNLOAD MSDS (PDF)

Synonym: β-DEX™ 325, 30M .25MM .25UM

Properties

Related Categories β-DEX 325, Analytical/Chromatography, Chiral Chromatography, Chiral GC Columns by Derivative Type, Chiral Gas Chromatography (GC) Columns,
material   fused silica
description   GC capillary column
Beta value   250
df   0.25 μm
L × I.D.   30 m × 0.25 mm
matrix active group   non-bonded; 25% 2,3-di-O-methyl-6-O-TBDMS-β-cyclodextrin in SPB-20 poly(20% phenyl/80% dimethylsiloxane) phase

Description

Chem/Phys Resistance

Temp. Limits:
• 30 °C to 230 °C

General description

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.

Legal Information

DEX is a trademark of Sigma-Aldrich Co. LLC

Price and Availability

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Poly(dimethylsiloxane-<I>co</I>-alkylmethylsiloxane)
457655Poly(dimethylsiloxane-co-alkylmethylsiloxane)

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