The B-Dex 225 is nonbonded, therefore it does not support aqueous injections. Injecting water can wash the phase out of the column. It's essential for both the samples and the carrier gas to be moisture free. This applies to all non-bonded phase columns, not just chiral columns.
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Über diesen Artikel
material
fused silica
Quality Segment
description
GC capillary column
analyte chemical class(es)
alcohols, amino acids, amphetamines, ketones, terpenes
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
Chiral, non-bonded; 25% 2,3-di-O-acetyl-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)
column type
capillary chiral
separation technique
chiral
General description
Features and Benefits
- 30 °C bis 230 °C
Other Notes
Legal Information
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Dieser Artikel | |||
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| description L × I.D. 30 m × 0.25 mm, df 0.25 μm | description L × I.D. 30 m × 0.25 mm, df 0.25 μm | description L × I.D. 30 m × 0.25 mm, df 0.25 μm | description L × I.D. 30 m × 0.25 mm, df 0.25 μm |
| matrix active group Chiral, non-bonded; 25% 2,3-di-O-acetyl-6-O-TBDMS-β-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, Chiral | 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, Chiral | matrix active group non-bonded; 10% permethylated β-cyclodextrin in SPB-35 poly(35% diphenyl/65% dimethylsiloxane) phase, Chiral |
| parameter 30-230 °C temperature | parameter 30-230 °C temperature | parameter 30-230 °C temperature | parameter 30-230 °C temperature |
| application(s) agriculture | application(s) agriculture | application(s) agriculture | application(s) agriculture |
| column type capillary chiral | column type capillary chiral | column type capillary chiral | column type capillary chiral |
| technique(s) gas chromatography (GC): suitable | technique(s) gas chromatography (GC): suitable | technique(s) gas chromatography (GC): suitable | technique(s) gas chromatography (GC): suitable |
| material fused silica | material fused silica | material fused silica | material fused silica |
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After reading the care document and noting that the CHIRALDEX TA columns should not be exposed to moisture in the sample, is it acceptable to inject aqueous samples into the beta DEX 225 column?
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