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Optimisation of pressurised liquid extraction for the determination of p,p'-DDT and p,p'-DDE in aged contaminated Ethiopian soils

Hussen, Ahmed LU ; Westbom, Rikard LU ; Megersa, Negussie LU ; Retta, Negussie ; Mathiasson, Lennart LU and Björklund, Erland LU (2006) In Analytical and Bioanalytical Chemistry 386(5). p.1525-1533
Abstract
The effectiveness of extracting p,p'-DDT and p,p'-DDE from aged contaminated soil samples by means of pressurized liquid extraction (PLE) was evaluated. Two soil samples, which were contaminated more than 10 years ago, were used in the investigation. The static extraction time was optimised and then validated against the total sum of target analytes obtained from multiple sequential extractions. The PLE results were also compared with Soxhlet extraction (SOX). PLE for 3x10 min at 100 degrees C was proven to be more exhaustive than SOX in the determination of p,p'-DDE from both soil samples. In the case of p,p'-DDT, PLE was found to be equally as exhaustive as SOX. Additionally, most of the previous PLE investigations used hazardous organic... (More)
The effectiveness of extracting p,p'-DDT and p,p'-DDE from aged contaminated soil samples by means of pressurized liquid extraction (PLE) was evaluated. Two soil samples, which were contaminated more than 10 years ago, were used in the investigation. The static extraction time was optimised and then validated against the total sum of target analytes obtained from multiple sequential extractions. The PLE results were also compared with Soxhlet extraction (SOX). PLE for 3x10 min at 100 degrees C was proven to be more exhaustive than SOX in the determination of p,p'-DDE from both soil samples. In the case of p,p'-DDT, PLE was found to be equally as exhaustive as SOX. Additionally, most of the previous PLE investigations used hazardous organic solvents such as n-hexane, toluene and dichloromethane mixed with acetone, whereas in this investigation the less toxic solvent combination n-heptane/acetone has been employed. (Less)
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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
extraction, pressurized liquid, organochlorine pesticides, endocrine disruptors, trace organic compounds, soil
in
Analytical and Bioanalytical Chemistry
volume
386
issue
5
pages
1525 - 1533
publisher
Springer
external identifiers
  • wos:000241604700040
  • scopus:33750485844
  • pmid:16896614
ISSN
1618-2642
DOI
10.1007/s00216-006-0667-z
language
English
LU publication?
yes
additional info
The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Analytical Chemistry (S/LTH) (011001004)
id
45e939fb-cca5-483b-9dd8-bf8d8b1f67f8 (old id 384247)
date added to LUP
2016-04-01 12:02:04
date last changed
2020-01-12 09:05:09
@article{45e939fb-cca5-483b-9dd8-bf8d8b1f67f8,
  abstract     = {The effectiveness of extracting p,p'-DDT and p,p'-DDE from aged contaminated soil samples by means of pressurized liquid extraction (PLE) was evaluated. Two soil samples, which were contaminated more than 10 years ago, were used in the investigation. The static extraction time was optimised and then validated against the total sum of target analytes obtained from multiple sequential extractions. The PLE results were also compared with Soxhlet extraction (SOX). PLE for 3x10 min at 100 degrees C was proven to be more exhaustive than SOX in the determination of p,p'-DDE from both soil samples. In the case of p,p'-DDT, PLE was found to be equally as exhaustive as SOX. Additionally, most of the previous PLE investigations used hazardous organic solvents such as n-hexane, toluene and dichloromethane mixed with acetone, whereas in this investigation the less toxic solvent combination n-heptane/acetone has been employed.},
  author       = {Hussen, Ahmed and Westbom, Rikard and Megersa, Negussie and Retta, Negussie and Mathiasson, Lennart and Björklund, Erland},
  issn         = {1618-2642},
  language     = {eng},
  number       = {5},
  pages        = {1525--1533},
  publisher    = {Springer},
  series       = {Analytical and Bioanalytical Chemistry},
  title        = {Optimisation of pressurised liquid extraction for the determination of p,p'-DDT and p,p'-DDE in aged contaminated Ethiopian soils},
  url          = {http://dx.doi.org/10.1007/s00216-006-0667-z},
  doi          = {10.1007/s00216-006-0667-z},
  volume       = {386},
  year         = {2006},
}