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Field—Based Supercritical Fluid Extraction of Hydrocarbons at Industrially Contaminated Sites
Examination of organic pollutants in groundwaters should also consider the source of the pollution, which is often a solid matrix such as soil, landfill waste, or sediment. This premise should be viewed alongside the growing trend towards field-based characterisation of contaminated sites for reason...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
TheScientificWorldJOURNAL
2002
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6009299/ https://www.ncbi.nlm.nih.gov/pubmed/12805963 http://dx.doi.org/10.1100/tsw.2002.205 |
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author | Rigou, Peggy Setford, Steven John Saini, Selwayan |
author_facet | Rigou, Peggy Setford, Steven John Saini, Selwayan |
author_sort | Rigou, Peggy |
collection | PubMed |
description | Examination of organic pollutants in groundwaters should also consider the source of the pollution, which is often a solid matrix such as soil, landfill waste, or sediment. This premise should be viewed alongside the growing trend towards field-based characterisation of contaminated sites for reasons of speed and cost. Field-based methods for the extraction of organic compounds from solid samples are generally cumbersome, time consuming, or inefficient. This paper describes the development of a field-based supercritical fluid extraction (SFE) system for the recovery of organic contaminants (benzene, toluene, ethylbenzene, and xylene and polynuclear aromatic hydrocarbons) from soils. A simple, compact, and robust SFE system has been constructed and was found to offer the same extraction efficiency as a well-established laboratory SFE system. Extraction optimisation was statistically evaluated using a factorial analysis procedure. Under optimised conditions, the device yielded recovery efficiencies of >70% with RSD values of 4% against the standard EPA Soxhlet method, compared with a mean recovery efficiency of 48% for a commercially available field-extraction kit. The device will next be evaluated with real samples prior to field deployment. |
format | Online Article Text |
id | pubmed-6009299 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2002 |
publisher | TheScientificWorldJOURNAL |
record_format | MEDLINE/PubMed |
spelling | pubmed-60092992018-07-04 Field—Based Supercritical Fluid Extraction of Hydrocarbons at Industrially Contaminated Sites Rigou, Peggy Setford, Steven John Saini, Selwayan ScientificWorldJournal Short Communication Examination of organic pollutants in groundwaters should also consider the source of the pollution, which is often a solid matrix such as soil, landfill waste, or sediment. This premise should be viewed alongside the growing trend towards field-based characterisation of contaminated sites for reasons of speed and cost. Field-based methods for the extraction of organic compounds from solid samples are generally cumbersome, time consuming, or inefficient. This paper describes the development of a field-based supercritical fluid extraction (SFE) system for the recovery of organic contaminants (benzene, toluene, ethylbenzene, and xylene and polynuclear aromatic hydrocarbons) from soils. A simple, compact, and robust SFE system has been constructed and was found to offer the same extraction efficiency as a well-established laboratory SFE system. Extraction optimisation was statistically evaluated using a factorial analysis procedure. Under optimised conditions, the device yielded recovery efficiencies of >70% with RSD values of 4% against the standard EPA Soxhlet method, compared with a mean recovery efficiency of 48% for a commercially available field-extraction kit. The device will next be evaluated with real samples prior to field deployment. TheScientificWorldJOURNAL 2002-04-19 /pmc/articles/PMC6009299/ /pubmed/12805963 http://dx.doi.org/10.1100/tsw.2002.205 Text en Copyright © 2002 Peggy Rigou et al. https://creativecommons.org/licenses/by/3.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Short Communication Rigou, Peggy Setford, Steven John Saini, Selwayan Field—Based Supercritical Fluid Extraction of Hydrocarbons at Industrially Contaminated Sites |
title | Field—Based Supercritical Fluid Extraction of Hydrocarbons at Industrially Contaminated Sites |
title_full | Field—Based Supercritical Fluid Extraction of Hydrocarbons at Industrially Contaminated Sites |
title_fullStr | Field—Based Supercritical Fluid Extraction of Hydrocarbons at Industrially Contaminated Sites |
title_full_unstemmed | Field—Based Supercritical Fluid Extraction of Hydrocarbons at Industrially Contaminated Sites |
title_short | Field—Based Supercritical Fluid Extraction of Hydrocarbons at Industrially Contaminated Sites |
title_sort | field—based supercritical fluid extraction of hydrocarbons at industrially contaminated sites |
topic | Short Communication |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6009299/ https://www.ncbi.nlm.nih.gov/pubmed/12805963 http://dx.doi.org/10.1100/tsw.2002.205 |
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