Contemporary chiral simulators for capillary zone electrophoresis.

Area of Science:

• Analytical Chemistry
• Separation Science

Background:

• Chiral separations are crucial for distinguishing enantiomers, essential in pharmaceuticals and chemical analysis.
• Electromigration techniques, like Capillary Zone Electrophoresis (CZE), are widely used for enantiomeric separations.
• Accurate predictive models are needed to optimize complex chiral separation conditions.

Purpose of the Study:

• To evaluate the predictive accuracy of PeakMaster 6, a new generalized model, for enantiomer separation in CZE.
• To compare PeakMaster 6 predictions with data from established dynamic simulators (SIMUL5complex, GENTRANS).
• To assess PeakMaster 6's utility as a practical tool for experimentalists in chiral separations.

Main Methods:

• Investigated four electrophoretic systems involving stereoisomers of weak bases and chiral selectors.
• Compared experimental data with predictions from PeakMaster 6 and dynamic simulators SIMUL5complex and GENTRANS.
• Utilized conductivity and UV absorbance detection in capillary setups for monitoring separations.

Main Results:

• PeakMaster 6 predictions showed strong agreement with data from dynamic simulators SIMUL5complex and GENTRANS.
• Simulation data from PeakMaster 6 correlated well with experimental results across various chiral systems.
• PeakMaster 6 successfully modeled complex phenomena like analyte-system peak interference and migration order changes.

Conclusions:

• PeakMaster 6 provides a reliable and significantly faster method for predicting enantiomer separations in CZE compared to dynamic simulators.
• The model is a practical tool for optimizing experimental conditions in chiral capillary electrophoresis.
• PeakMaster 6 advances the simulation of electromigration-based chiral separations, aiding experimental design and analysis.