CHIRALDEX PH

Astec CHIRALDEX A-PH and B-PH capillary GC columns incorporate a phase consisting of a (S)-2-hydroxy propyl methyl ether derivative of either α- or β-cyclodextrin. These phases separate a wide variety of enantiomers, resolving aliphatic, olefinic, and aromatic enantiomers. They are good general purpose chiral columns.

Features

• Chiral stationary phases for GC
• Hydrophilic surface
• Separate a wide variety of enantiomers
• Resolve aliphatic, olefinic, and aromatic enantiomers
• Good general purpose chiral columns

Mechanism Observations

• Reduced influence of inclusion complexing
• Less size selectivity than the DA phases
• Characteristic temperature selectivity on a given column for a given class of compounds
• Fewer functional requirements for analyte than LC

Size Selectivity

For the PH phases a minimal effect is seen based on size selectivity.

Specific Classes of Compounds Separated

Use this table as a reference to help determine the proper column based on the analyte(s) of interest.