GC×GC-TOFMS, the Swiss Knife for VOC Mixtures Analysis in Soil Forensic Investigations
| Autor: | Pierre-Hugues Stefanuto, Jean-François Focant |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
chemistry.chemical_classification
High peak 010401 analytical chemistry Chemical process of decomposition Analytical chemistry 02 engineering and technology Gc gc tofms 021001 nanoscience & nanotechnology 01 natural sciences Decomposition 0104 chemical sciences chemistry.chemical_compound chemistry Odor Environmental chemistry Environmental science Volatile organic compound Time-of-flight mass spectrometry Dimethyl trisulfide 0210 nano-technology |
| Zdroj: | Soil in Criminal and Environmental Forensics ISBN: 9783319331133 |
| Popis: | The study of the ‘smell of death’ is an important part of the thanatochemistry, the chemistry of death. Since 2004 (Vass et al. 2004), an increasing number of studies have been conducted to understand the body decomposition process by measuring the Volatile Organic Compounds (VOCs) released by decaying bodies. However, the chemical profile of the decomposition odor is still far for from being resolved. Indeed, the complexity of the VOC mixture makes it difficult to be carried out by classical GC-MS. A better understanding of the decomposition process could thus possibly be achieved using a multidimensional technique such as Comprehensive Two Dimensional Gas Chromatography coupled to time of flight mass spectrometry (GC×GC-TOFMS). The high peak capacity of this multidimensional technique combined with the visualization power of multivariate statistical methods allows a deeper understanding of complex VOC matrices. |
| Databáze: | OpenAIRE |
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