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Mass Spectrometry: Complex Analysis

Mass Spectrometry: Complex Analysis

Mass spectrometry is an important technique for the identification of pure compounds. However, it has some limitations for the analysis of complex mixtures, often due to excessive fragmentation making the spectrum too complicated to decipher. Mass spectrometry can be combined with suitable separation methods in sequence, forming hyphenated methods, which are useful in the analysis of complex mixtures.
GC–MS is a powerful hyphenated method commonly used in forensics and environmental...

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Related Experiment Video

Updated: Dec 30, 2025

Author Spotlight: Quantification of Complex Lipidomic Samples Using Stable Isotope Labeling

Author Spotlight: Quantification of Complex Lipidomic Samples Using Stable Isotope Labeling

Published on: August 23, 2024

New Frontiers in Lipidomics Analyses using Structurally Selective Ion Mobility-Mass Spectrometry.

Rachel A Harris¹, Katrina L Leaptrot¹, Jody C May¹

¹Department of Chemistry, Center for Innovative Technology, Vanderbilt Institute of Chemical Biology, Vanderbilt Institute for Integrative Biosystems Research and Education, Vanderbilt-Ingram Cancer Center, Vanderbilt University, Nashville Tennessee 37235, United States.

Trends in Analytical Chemistry : TRAC

|January 28, 2020

Summary

Lipidomics requires advanced analytical methods due to complex lipid structures. This review covers ion mobility-mass spectrometry and ozonolysis for specific lipid characterization.

Keywords:

Lipids collision cross section ion mobility-mass spectrometry isomers lipidomics mass spectrometry molecular structure ozonolysis

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Sample Preparation for Rapid Lipid Analysis in Drosophila Brain Using Matrix-Assisted Laser Desorption/Ionization Mass Spectrometry Imaging

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Shotgun Lipidomics of Rodent Tissues

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Published on: November 18, 2022

Area of Science:

Analytical Chemistry
Biochemistry
Lipidomics

Background:

The field of lipidomics faces challenges due to the high structural complexity and isomeric diversity of lipids.
Standard mass spectrometry often struggles to differentiate between various lipid species without complementary separation techniques.

Purpose of the Study:

To review emerging analytical strategies for specific lipid structural characterization in lipidomics.
To highlight techniques that address the limitations of traditional mass spectrometry in lipid analysis.

Main Methods:

Ion mobility-mass spectrometry (IM-MS) for separating lipid isomers based on their size and shape.
Ion fragmentation via ozonolysis for targeted structural elucidation of lipids.

Main Results:

These advanced techniques offer enhanced specificity for distinguishing lipid isomers.
Combining multiple analytical methods provides a more comprehensive approach to lipidomic analysis.

Conclusions:

Ion mobility-mass spectrometry and ozonolysis are promising strategies for advancing lipidomic structural characterization.
These methods are crucial for overcoming the inherent challenges posed by lipid complexity in modern research.