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http://hdl.handle.net/2445/174130
Title: | A new Method for determining Compound Specific Carbon Isotope of Chlorinated Solvents in Porewater |
Author: | Herrero Ferran, Jofre Puigserver Cuerda, Diana Parker, B. L. Carmona Pérez, José Ma. (José María) |
Keywords: | Isòtops de carboni Hidrogeologia Hidrologia d'aigües subterrànies Clor Carbon isotopes Hydrogeology Groundwater hydrology Chlorine |
Issue Date: | 21-Jan-2021 |
Publisher: | Wiley |
Abstract: | A new method for the extraction of chlorinated solvents (CSs) from porewater with dimethylacetamide (DMA) used as a solvent and the determination of δ13C by gas chromatography-isotope ratio mass spectrometry (GC-IRMS) with solid-phase microextraction (SPME) are presented. This method was used for the determination of δ13C of chloroethenes and chloromethanes. The extraction of the CSs from porewater with DMA led to a minimal loss of mass of solvent and chlorinated compounds. The accuracy of the method was verified with the analysis of the pure injected compounds using elemental analyser - isotope ratio mass spectrometry (EA-IRMS). It has been effectively applied in a study area in saturated soil samples of a pollutant source zone of perchloroethylene (PCE) and trichloroethylene (TCE). The limit of quantification of the new method was 0.034 µg/g for PCE and TCE for 10-20 g of soil sample. This new method allows for compound-specific isotope analysis (CSIA) of CSs in porewater, which can be beneficial in sites where the identification of contamination sources and the behaviour of the contaminants are not clear. |
Note: | Versió postprint del document publicat a: https://doi.org/10.1111/gwmr.12435 |
It is part of: | Groundwater Monitoring & Remediation, 2021 |
URI: | http://hdl.handle.net/2445/174130 |
Related resource: | https://doi.org/10.1111/gwmr.12435 |
ISSN: | 1069-3629 |
Appears in Collections: | Articles publicats en revistes (Mineralogia, Petrologia i Geologia Aplicada) |
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