24348

β-DEX^™ 225

L × I.D. 30 m × 0.25 mm, d_f 0.25 μm

• Kod UNSPSC: 41115710
• eCl@ss: 32119290

Właściwości

• Materiały: fused silica
• Poziom jakości: 100
• opis: GC capillary column
• Parametry: 30-230 °C temperature
• Wartość beta: 250
• df: 0.25 μm
• metody: gas chromatography (GC): suitable
• dł. × śr. wewn.: 30 m × 0.25 mm
• grupa aktywna macierzy: non-bonded; 25% 2,3-di-O-acetyl-6-O-TBDMS-β-cyclodextrin in SPB-20 poly(20% phenyl/80% dimethylsiloxane) phase
• Zastosowanie: 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)
• typ kolumny: capillary chiral
• metoda separacji: chiral

Opis

Opis ogólny

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 Supelco β-DEX 225 is a modified form of the β-DEX 325 phase, and employs acetyl derivatives at the 2,3-positions instead of more traditional methyl derivatives. The chiral stationary phase in β-DEX 225 columns contains 2,3-di-O-acetyl-6-0-TBDMS-β-cyclodextrin embedded in an intermediate polarity phase. These columns provide unique selectivity for enantiomeric separations of small molecules: alcohols, aldehydes (e.g., 2-phenylpropionaldehyde), esters (e.g. methyl malate, methyl lactate), flavor compounds and ketones.

Odporność chem./fiz.

Temp. Limits:

• 30 °C to 230 °C

Inne uwagi

We offer a variety of chromatography accessories including analytical syringes

Informacje prawne

DEX is a trademark of Sigma-Aldrich Co. LLC

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