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Mass spectrometry is a powerful characterization technique that can identify and separate a wide variety of compounds ranging from chemical to biological entities, based on their mass-to-charge ratio (m/z). The instruments that allow this detection, known as mass spectrometers, have three components: an ion source, a mass analyzer, and a detector. These spectrometers differ based on the nature of their ion source and analyzers.Matrix-assisted laser desorption ionization (MALDI) is a commonly...
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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.
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Related Experiment Video

Updated: Apr 30, 2026

A Noninvasive Hair Sampling Technique to Obtain High Quality DNA from Elusive Small Mammals
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[Research Progress on Hair Metabolomics and Its Application in Forensic Science].

Xin-Ying Wang1,2, Jia-Li Zhang1,3, Ping Xiang1

  • 1Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China.

Fa Yi Xue Za Zhi
|April 29, 2026
PubMed
Summary

Hair metabolomics offers a wider detection window for retrospective studies and chronological information, showing promise in forensic applications like drug abuse monitoring.

Keywords:
forensic medicinehairmetabolomicsreviewtoxicological analysis

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Area of Science:

  • Metabolomics and bioinformatics
  • Forensic science and toxicology

Background:

  • Metabolomics analyzes small-molecule metabolites to identify biomarkers.
  • Hair is emerging as a valuable matrix in metabolomics due to its unique properties.
  • Compared to blood and urine, hair provides a wider detection window and enables retrospective analysis.

Purpose of the Study:

  • To review the current state of hair metabolomics.
  • To discuss sample collection, processing, and analytical techniques.
  • To highlight applications in forensic research and future prospects.

Main Methods:

  • Comprehensive analysis of small-molecule metabolites in hair samples.
  • Bioinformatics techniques for data interpretation.
  • Segmental analysis of hair for chronological information.

Main Results:

  • Hair metabolomics enables retrospective studies and provides chronological data.
  • Established applications include drug abuse monitoring.
  • Demonstrates broad potential for forensic investigations.

Conclusions:

  • Hair metabolomics is a developing field with significant forensic applications.
  • Further research can advance its use in various scientific domains.
  • Provides a valuable reference for hair metabolomics development.