Triazine herbicide imprinted monolithic column for capillary electrochromatography

Area of Science:

• Analytical Chemistry
• Separation Science
• Materials Science

Background:

• Selective separation of structurally similar molecules is challenging.
• Molecularly imprinted polymers (MIPs) offer tailored recognition sites.
• Developing efficient MIPs for specific analyte separation is crucial.

Purpose of the Study:

• To develop a molecularly imprinted monolithic polymer for selective trietazine separation.
• To investigate the recognition mechanism and optimize separation conditions.
• To demonstrate the separation of trietazine from a similar molecule, cyanazine.

Main Methods:

• Fabrication of a trietazine-imprinted monolithic polymer.
• Scanning Electron Microscopy (SEM) for structural analysis.
• Evaluation of mobile phase composition, electrical field, and pH effects on separation.
• Electrophoretic mobility measurements.

Main Results:

• The imprinted monolithic column selectively separated trietazine from cyanazine.
• Structural features were characterized by SEM.
• Imprint effect was confirmed by an imprinting factor.
• Optimized conditions yielded separation within 6 minutes.
• Electrophoretic mobility of trietazine was determined at pH 11.0.

Conclusions:

• The developed molecularly imprinted monolithic polymer provides effective and selective separation of trietazine.
• The method allows for rapid analysis of trietazine in the presence of interfering compounds.
• This approach demonstrates potential for selective analyte determination in complex matrices.