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[Advances in nonaqueous capillary electrophoresis]
1National Chromatography R. & A. Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116012, China.
Se Pu = Chinese Journal of Chromatography
|January 25, 2003
Summary
This review covers advances in nonaqueous capillary electrophoresis, highlighting the advantages of using organic solvents over aqueous buffers for separation. It details solvent selection, detection methods, and the separation of diverse chemical compounds.
Area of Science:
- Analytical Chemistry
- Separation Science
Background:
- Capillary electrophoresis (CE) is typically conducted in aqueous buffers.
- Nonaqueous capillary electrophoresis (NACE) offers distinct advantages by utilizing organic solvents as the separation medium.
Purpose of the Study:
- To review recent advancements in nonaqueous capillary electrophoresis.
- To summarize key aspects of NACE, including solvent and electrolyte selection, detection modes, and solute-additive interactions.
Main Methods:
- Literature review of 71 references on nonaqueous capillary electrophoresis.
- Analysis of solvent effects, electrolyte choices, and detection strategies in NACE.
- Examination of separation capabilities for various compound classes.
Main Results:
- Organic solvents provide advantages over aqueous buffers in specific CE applications.
- Effective separation of inorganic ions, neural compounds, organic acids, pharmaceuticals, metabolites, and chiral substances is achievable using NACE.
- Solute-additive interactions play a crucial role in optimizing separations.
Conclusions:
- Nonaqueous capillary electrophoresis is a versatile technique with significant advantages for specific analytical challenges.
- The judicious selection of organic solvents and electrolytes is key to successful NACE method development.
- NACE demonstrates broad applicability across diverse fields of chemical analysis.