Advanced

Development of a pressurized liquid extraction and clean-up procedure for the determination of alpha-endosulfan, beta-endosulfan and endosulfan sulfate in aged contaminated Ethiopian soils

Hussen, Ahmed LU ; Westbom, Rikard LU ; Megersa, N; Mathiasson, Lennart LU and Björklund, Erland LU (2006) In Journal of Chromatography A 1103(2). p.202-210
Abstract
Pressurized liquid extraction (PLE) was investigated for the extraction of two endosulfan isomers and their metabolite from two real contaminated soil samples. PLE for 3 x 10 min at 100 degrees C was proven to be more exhaustive than Soxhlet extraction (SOX) in one soil sample. On the other soil sample investigated the method was found to be equally exhaustive as SOX. The use of hazardous organic solvents such as n-hexane, toluene, and diethyl ether has been avoided in PLE and clean-up. Instead less toxic solvents have been used both at the extraction step (acetone/n-heptane) and clean-up step (ethyl acetate/n-heptane). A column Florisil clean-up procedure that consumes relatively low solvent volumes has been optimized and applied to... (More)
Pressurized liquid extraction (PLE) was investigated for the extraction of two endosulfan isomers and their metabolite from two real contaminated soil samples. PLE for 3 x 10 min at 100 degrees C was proven to be more exhaustive than Soxhlet extraction (SOX) in one soil sample. On the other soil sample investigated the method was found to be equally exhaustive as SOX. The use of hazardous organic solvents such as n-hexane, toluene, and diethyl ether has been avoided in PLE and clean-up. Instead less toxic solvents have been used both at the extraction step (acetone/n-heptane) and clean-up step (ethyl acetate/n-heptane). A column Florisil clean-up procedure that consumes relatively low solvent volumes has been optimized and applied to purify soil extracts. The developed analytical procedure was validated by applying it to a certified reference soil material (CRM811-050). A recovery of 103% total endosulfan residue was obtained versus certified values. (c) 2005 Elsevier B.V. All rights reserved. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
clean-up, Florisil, aged soil, pressurized liquid extraction, endosulfan, safe solvent
in
Journal of Chromatography A
volume
1103
issue
2
pages
202 - 210
publisher
Elsevier
external identifiers
  • pmid:16368102
  • wos:000234879600003
  • scopus:30344487289
ISSN
0021-9673
DOI
10.1016/j.chroma.2005.11.025
language
English
LU publication?
yes
id
34bdc536-5fe8-409c-bcf9-41bf0b675c84 (old id 419420)
date added to LUP
2007-10-05 11:06:49
date last changed
2019-04-30 02:39:40
@article{34bdc536-5fe8-409c-bcf9-41bf0b675c84,
  abstract     = {Pressurized liquid extraction (PLE) was investigated for the extraction of two endosulfan isomers and their metabolite from two real contaminated soil samples. PLE for 3 x 10 min at 100 degrees C was proven to be more exhaustive than Soxhlet extraction (SOX) in one soil sample. On the other soil sample investigated the method was found to be equally exhaustive as SOX. The use of hazardous organic solvents such as n-hexane, toluene, and diethyl ether has been avoided in PLE and clean-up. Instead less toxic solvents have been used both at the extraction step (acetone/n-heptane) and clean-up step (ethyl acetate/n-heptane). A column Florisil clean-up procedure that consumes relatively low solvent volumes has been optimized and applied to purify soil extracts. The developed analytical procedure was validated by applying it to a certified reference soil material (CRM811-050). A recovery of 103% total endosulfan residue was obtained versus certified values. (c) 2005 Elsevier B.V. All rights reserved.},
  author       = {Hussen, Ahmed and Westbom, Rikard and Megersa, N and Mathiasson, Lennart and Björklund, Erland},
  issn         = {0021-9673},
  keyword      = {clean-up,Florisil,aged soil,pressurized liquid extraction,endosulfan,safe solvent},
  language     = {eng},
  number       = {2},
  pages        = {202--210},
  publisher    = {Elsevier},
  series       = {Journal of Chromatography A},
  title        = {Development of a pressurized liquid extraction and clean-up procedure for the determination of alpha-endosulfan, beta-endosulfan and endosulfan sulfate in aged contaminated Ethiopian soils},
  url          = {http://dx.doi.org/10.1016/j.chroma.2005.11.025},
  volume       = {1103},
  year         = {2006},
}