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...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2002-01-01
|
| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1100/tsw.2002.205 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832558918963822592 |
|---|---|
| author | Peggy Rigou Steven John Setford Selwayan Saini |
| author_facet | Peggy Rigou Steven John Setford Selwayan Saini |
| author_sort | Peggy Rigou |
| collection | DOAJ |
| 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 | Article |
| id | doaj-art-2efc5ed2756443b4abb9379dc2a538f3 |
| institution | Kabale University |
| issn | 1537-744X |
| language | English |
| publishDate | 2002-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-2efc5ed2756443b4abb9379dc2a538f32025-02-03T01:31:14ZengWileyThe Scientific World Journal1537-744X2002-01-0121063106910.1100/tsw.2002.205Field—Based Supercritical Fluid Extraction of Hydrocarbons at Industrially Contaminated SitesPeggy Rigou0Steven John Setford1Selwayan Saini2Cranfield Centre for Analytical Science, Cranfield University at Silsoe, Silsoe, Bedfordshire, MK45 4DT, UKCranfield Centre for Analytical Science, Cranfield University at Silsoe, Silsoe, Bedfordshire, MK45 4DT, UKCranfield Centre for Analytical Science, Cranfield University at Silsoe, Silsoe, Bedfordshire, MK45 4DT, UKExamination 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.http://dx.doi.org/10.1100/tsw.2002.205 |
| spellingShingle | Peggy Rigou Steven John Setford Selwayan Saini Field—Based Supercritical Fluid Extraction of Hydrocarbons at Industrially Contaminated Sites The Scientific World Journal |
| 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 |
| url | http://dx.doi.org/10.1100/tsw.2002.205 |
| work_keys_str_mv | AT peggyrigou fieldbasedsupercriticalfluidextractionofhydrocarbonsatindustriallycontaminatedsites AT stevenjohnsetford fieldbasedsupercriticalfluidextractionofhydrocarbonsatindustriallycontaminatedsites AT selwayansaini fieldbasedsupercriticalfluidextractionofhydrocarbonsatindustriallycontaminatedsites |