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Updated: Jul 27, 2025
05:31
Gas Chromatography-Mass Spectrometry Paired with Total Vaporization Solid-Phase Microextraction as a Forensic Tool
Published on: May 25, 2021
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Forensic analysis by solid sampling electrothermal vaporization coupled to inductively coupled plasma optical
Kate Moghadam1, Diane Beauchemin1
1Department of Chemistry, Queen's University, 90 Bader Lane, Kingston, ON K7L 3N6, Canada. diane.beauchemin@queensu.ca.
Chemical Communications (Cambridge, England)
|June 9, 2023
Summary
Solid sampling electrothermal vaporization coupled to inductively coupled plasma optical emission spectrometry (ETV-ICPOES) offers a sensitive method for forensic trace evidence analysis. This technique enables precise identification and discrimination of evidence using minimal sample amounts.
Area of Science:
- Forensic Science
- Analytical Chemistry
- Spectrometry
Background:
- Forensic trace evidence analysis demands non-destructive or minimal sample techniques.
- Solid sampling electrothermal vaporization coupled to inductively coupled plasma optical emission spectrometry (ETV-ICPOES) is a suitable technique, requiring only 0.1-5 mg of sample.
Purpose of the Study:
- To discuss the capabilities of ETV-ICPOES for forensic evidence analysis.
- To highlight its value in identifying, determining, and discriminating evidence.
Main Methods:
- Review of ETV-ICPOES methods for direct analysis of physical and trace evidence.
- Application of matrix-matched external calibration and internal standardization.
- Utilizing multivariate analysis (PCA, LDA) for qualitative multi-element analysis.
Main Results:
- ETV-ICPOES demonstrates diverse opportunities for evidence identification and discrimination.
- Methods allow for quantification of multiple elements and qualitative multi-element analysis.
- Internal standardization effectively compensates for sample loading effects.
Conclusions:
- ETV-ICPOES is a valuable tool for forensic trace evidence analysis.
- Latest advancements offer diverse opportunities for evidence examination.
- Future forensic settings can benefit from ETV-ICPOES utilization.
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