Hydrophilic interaction liquid chromatography (HILIC)--a powerful separation technique

Area of Science:

• Analytical Chemistry
• Chromatography

Background:

• Hydrophilic interaction liquid chromatography (HILIC) is a key technique for separating small polar compounds.
• It utilizes polar stationary phases, offering an alternative to traditional reversed-phase methods.

Purpose of the Study:

• To review methods for characterizing HILIC stationary phases.
• To explore HILIC applications for separating polar compounds in complex matrices.
• To enhance understanding of HILIC retention mechanisms.

Main Methods:

• Literature review of HILIC stationary phase characterization techniques.
• Analysis of HILIC applications in various matrices.
• Discussion of retention behavior and mobile phase considerations.

Main Results:

• HILIC stationary phase characteristics influence mobile phase selection.
• Understanding retention mechanisms is crucial for optimizing separations.
• Potential for HILIC in orthogonal and 2D chromatography was highlighted.

Conclusions:

• Characterization and understanding of HILIC are vital for its effective application.
• HILIC offers versatile solutions for polar compound separation in complex samples.
• Further exploration of HILIC in advanced chromatographic techniques is warranted.