Related Experiment Video
Updated: Jun 3, 2026

Large-Scale Multi-Omics Genome-Wide Association Studies (Mo-GWAS): Guidelines for Sample Preparation and Normalization
Published on: July 27, 2021
An ultrasonication-assisted extraction and derivatization protocol for GC/TOFMS-based metabolite profiling
Yumin Liu1, Tianlu Chen, Yunpin Qiu
1School of Pharmacy, Center for Instrumental Analysis, Shanghai Jiao Tong University, Shanghai 200240, China.
Ultrasonication drastically cuts metabolite derivatization time to 30 minutes, enhancing efficiency for gas chromatography/time-of-flight mass spectrometry (GC/TOFMS). This improved method identified hypertension biomarkers in human serum, aiding large-scale metabolomic studies.
Area of Science:
- Analytical Chemistry
- Biochemistry
- Mass Spectrometry
Background:
- Conventional metabolite derivatization for GC/TOFMS is time-consuming, limiting throughput.
- Efficient metabolite profiling is crucial for understanding biological processes and disease states.
Purpose of the Study:
- To develop a rapid and efficient ultrasonication-assisted derivatization protocol for metabolite profiling.
- To evaluate the protocol's performance and apply it to identify hypertension biomarkers.
Main Methods:
- Ultrasonication-assisted chemical derivatization protocol.
- Gas chromatography/time-of-flight mass spectrometry (GC/TOFMS) analysis.
- Metabolomic study of human serum from hypertensive patients and healthy controls.
Main Results:
- Reduced derivatization time from hours to approximately 30 minutes.
- Increased peak intensity in 71.0% of identified compounds in GC/TOFMS chromatograms.
- Identified and validated hypertension-associated metabolite markers: glucosamine, D-sorbitol, 1-stearoylglycerol, and homocysteine.
Conclusions:
- The ultrasonication-assisted protocol significantly enhances derivatization efficiency and speed for GC/TOFMS.
- This novel approach is suitable for large-scale metabolomic profiling in various biological samples.
- The method facilitates the discovery and validation of disease-associated biomarkers.
More Related Videos
09:38Single-throughput Complementary High-resolution Analytical Techniques for Characterizing Complex Natural Organic Matter Mixtures
Published on: January 7, 2019
12:47Workflow Based on the Combination of Isotopic Tracer Experiments to Investigate Microbial Metabolism of Multiple Nutrient Sources
Published on: January 22, 2018
Related Concept Videos
Mass Spectrometry: Complex Analysis
GC–MS is a powerful hyphenated method commonly used in forensics and environmental...
Gas Chromatography–Mass Spectrometry (GC–MS)
A gas chromatograph consists of a long, narrow capillary column with a polysiloxane coating on the inner wall. The coating...
Tandem Mass Spectrometry
MALDI-TOF Mass Spectrometry