Recent advances in liquid-phase separations for clinical metabolomics

Area of Science:

• Analytical Chemistry
• Biochemistry
• Clinical Diagnostics

Background:

• Liquid-based separation techniques have seen significant technological advancements.
• These include sub-2 μm and sub-3 μm particles, supercritical fluid chromatography, and hydrophilic interaction chromatography.
• These methods are crucial for analyzing complex biological samples in clinical metabolomics.

Purpose of the Study:

• To review recent developments in liquid-phase separation sciences for clinical metabolomics.
• To highlight improvements in analytical throughput and metabolite coverage.
• To discuss the application of advanced separation techniques in large-scale clinical studies.

Main Methods:

• Review of ultra-high performance liquid chromatography (UHPLC) with sub-2 μm particles.
• Discussion of superficially porous particles (core-shell technology).
• Overview of supercritical fluid chromatography (SFC), high-temperature liquid chromatography (HTLC), capillary electrophoresis (CE), and hydrophilic interaction chromatography (HILIC).

Main Results:

• Technological improvements have substantially increased separation efficiency, selectivity, and speed.
• These advancements are vital for handling large sample cohorts and diverse metabolite profiles in clinical metabolomics.
• Combined with mass spectrometry, these techniques offer enhanced analytical capabilities.

Conclusions:

• Recent developments in liquid separation science significantly benefit clinical metabolomics.
• Increased throughput and metabolite coverage are key advantages for large-scale studies.
• Advanced techniques like UHPLC, SFC, and HILIC are essential tools for modern metabolomics research.