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Published on: February 7, 2017
Immobilized polysaccharide derivatives: chiral packing materials for efficient HPLC resolution
Tomoyuki Ikai1, Chiyo Yamamoto, Masami Kamigaito
1Department of Applied Chemistry, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan.
Chemical Record (New York, N.Y.)
|March 31, 2007
Summary
Immobilizing polysaccharide derivatives onto silica gel overcomes solvent limitations in chiral chromatography. This advancement enables broader mobile phase selection for resolving chiral compounds.
Area of Science:
- Analytical Chemistry
- Separation Science
- Materials Science
Background:
- Polysaccharide-based chiral packing materials (CPMs) are crucial for analyzing and separating chiral compounds.
- A major limitation of current CPMs is their instability in certain organic solvents, restricting mobile phase choices.
- This solvent incompatibility can damage columns and hinder efficient enantiomeric separation.
Purpose of the Study:
- To address the solvent limitations of polysaccharide-based CPMs.
- To develop robust chiral packing materials with enhanced solvent compatibility for high-performance liquid chromatography (HPLC).
- To enable wider mobile phase selection for improved analytical and preparative resolution of racemates.
Main Methods:
- Immobilization of polysaccharide derivatives onto silica gel.
- Utilizing radical copolymerization of polysaccharide derivatives with polymerizable residues.
- Employing polycondensation of polysaccharide derivatives containing silyl residues.
Main Results:
- Successfully immobilized polysaccharide derivatives onto silica gel, creating stable chiral packing materials.
- The immobilized CPMs demonstrated improved resistance to organic solvents that previously degraded conventional CPMs.
- This immobilization technique expands the range of usable mobile phases for chiral separations.
Conclusions:
- Immobilization is an effective strategy to overcome solvent limitations in polysaccharide-based chiral packing materials.
- The developed immobilized CPMs offer enhanced stability and broader mobile phase compatibility for HPLC.
- This breakthrough facilitates more efficient and versatile analytical and preparative resolutions of enantiomers.
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