A Novel Solid Phase Extraction Sample Preparation Method for Lipidomic Analysis of Human Plasma Using Liquid...

Area of Science:

• Lipidomics
• Biochemical analysis
• Analytical chemistry

Background:

• Lipidomic studies are crucial for understanding human health and disease.
• Conventional liquid-liquid extraction (LLE) for lipid analysis is laborious, time-consuming, and lacks reproducibility.
• Existing methods present challenges in lipid recovery and selectivity.

Purpose of the Study:

• To develop and validate a novel solid-phase extraction (SPE) method for lipid extraction from human plasma.
• To compare the efficiency and reproducibility of the new SPE method against traditional LLE techniques.
• To assess the impact of the SPE method on lipidome coverage and quantitative accuracy.

Main Methods:

• Lipid extraction from human plasma using a novel lipid extraction SPE in cartridge and 96-well-plate formats.
• Analysis of extracted lipids via targeted and untargeted liquid chromatography/mass spectrometry (LC/MS).
• Comparative analysis of SPE versus LLE based on lipid class recovery, lipidome coverage, and reproducibility.

Main Results:

• The novel SPE method significantly reduced time and labor compared to LLE.
• SPE demonstrated equivalent or superior performance in recovery, reproducibility, and lipidome coverage.
• The SPE method provided simplified protocols for lipid extraction.

Conclusions:

• The developed lipid extraction SPE method offers a more efficient and reliable alternative to LLE for human plasma analysis.
• This novel SPE approach enhances the quality and scope of lipidomic investigations.
• The method facilitates improved lipidomic profiling with greater accuracy and reduced experimental burden.