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| Main Author: | |
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| Format: | Artículo científico |
| Language: | en |
| Published: |
Universidad Nacional Autónoma de México
2018
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| Subjects: | |
| Online Access: | https://www.redalyc.org/articulo.oa?id=37056657017 https://www.redalyc.org/journal/370/37056657017/ https://www.redalyc.org/journal/370/37056657017/html/ https://www.redalyc.org/journal/370/37056657017/37056657017.epub https://www.redalyc.org/journal/370/37056657017/movil https://doi.org/10.20937/RICA.2018.34.02.15 |
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Table of Contents:
- ANALYTICAL PERFORMANCE OF MICROWAVE-ASSISTED SOLVENT EXTRACTION (MASE) FOR THE ROUTINE DETERMINATION OF PAHs IN POLLUTED SOILS BY GAS CHROMATOGRAPHIC-MASS SPECTROMETRY (GC-MS) José Enrique Sánchez-Uría Estela Del Castillo-Busto Ciencias de la Tierra solid method samples analysis Pollutants The extraction of polycyclic aromatic hydrocarbons (PAHs) from polluted soil samples using microwave-assisted solvent extraction (MASE) with subsequent determination by gas chromatography-mass spectrometry (GC-MS) was investigated. The optimum conditions for the extraction were established and, after cleansing the extracts, pollutants were quantified by GC-MS. The detection limits for the 16 USEPA members of the family, analysis time, precision and linear range of the analysis were also established. The proposed extraction methodology was compared with the most conventional Soxhlet extraction technique, and validated by applying MASE to a reference soil sample. Good recoveries for the majority of PAHs (when the calibrations were carried out by using internal standards), a significant shortening of the time of analysis and the volume-reduction of solvent used were observed. Therefore, the MASE sample preparation methodology is a very good alternative to the extraction of PAHs from soil samples before final determination by GC-MS. 2018 artículo científico 0188-4999 https://www.redalyc.org/articulo.oa?id=37056657017 https://www.redalyc.org/journal/370/37056657017/ https://www.redalyc.org/journal/370/37056657017/html/ https://www.redalyc.org/journal/370/37056657017/37056657017.epub https://www.redalyc.org/journal/370/37056657017/movil https://doi.org/10.20937/RICA.2018.34.02.15 en http://www.redalyc.org/revista.oa?id=370 Revista Internacional de Contaminación Ambiental application/pdf Universidad Nacional Autónoma de México Revista Internacional de Contaminación Ambiental (México) Num.2 Vol.34