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BGB (Chiral GC Columns)

BGB Chiral GC Columns

Chiral GC Columns

for the separation of enantiomers

Cyclodextrin Derivatives suspended in Polysiloxanes

Capillary columns with cyclodextrin derivatives can be used for the separation of broad range of enantiomers. For most of the compounds no specific derivatisation is needed, in some cases simple acetylation or methylation of polar groups is necessary. To achieve a maximum of seperation efficency and resolution the cyclodextrin derivatives are suspended in midpolar polysiloxanes. These columns are very durable and stable.

The mechanism of chiral recognition is not known in detail. So it´s difficult to predict the cyclodextrin that shows the best resolution. That's the reason why we offer seven different cyclodextrin phases.

BGB 173	50% 2,3-diacetyl-6-tert-butyldimethylsilyl-alpha-cyclodextrin dissolved in BGB-1701 (14% cyanopropylphenyl-, 86% methylpolysiloxane)
BGB 175	50% 2,3-diacetyl-6-tert-butyldimethylsilyl-gamma-cyclodextrin dissolved in BGB-1701 (14% cyanopropylphenyl-, 86% methylpolysiloxane)
BGB 176	30% 2,3-dimethyl-6-tert-butyldimethylsilyl-beta-cyclodextrin dissolved in BGB-15 (15% phenyl-, 85% methylpolysiloxane)
BGB 176SE	30% 2,3-dimethyl-6-tert-butyldimethylsilyl-beta-cyclodextrin dissolved in SE-52 (5% phenyl-, 95% methylpolysiloxane)
BGB 177	30% 2,6-dimethyl-3-phenyl-beta-cyclodextrin dissolved in BGB-15 (15% phenyl-, 85% methylpolysiloxane)
BGB 178	30% 2,6-diethyl-6-tert-butyldimethylsilyl-beta-cyclodextrin dissolved in BGB-15 (15% phenyl-, 85% methylpolysiloxane)
BGB 178PH	30% 2,6-dimethyl-6-tert-butyldimethylsilyl-beta-cyclodextrin dissolved in BGB-15 (15% phenyl-, 85% methylpolysiloxane)

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