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Direct supercritical fluid extraction of alkylphenols from spiked and wastewater samples using extraction cells equipped with hydrophobic membrane-assemblies

Sparr Eskilsson, Cecilia LU ; Agren, A; Mathiasson, Lennart LU and Björklund, Erland LU (2004) In Journal of Liquid Chromatography & Related Technologies 27(18). p.2871-2888
Abstract
Akylphenols (4-nonylphenol, 4-(1,1,3,3-tetramethylbutyl)-phenol and 2,6-bis(1,1-dimethylethyl)-4-ethylphenol) have been directly extracted from water samples using neat supercritical carbon dioxide and collected on an octadecyl silica (ODS) solid phase trap. The extraction cells were equipped with home-built assemblies containing hydrophobic membranes. The assemblies were inserted at each end of the extraction cell to maintain the water sample inside the extraction cell. In this case, no sample pretreatment step, such as freeze-drying or solid phase extraction (SPE) of the water samples, was needed prior to the supercritical fluid extraction (SFE). Distilled water, spiked with an alkylphenol standard solution at a level of 25 mg/L, was... (More)
Akylphenols (4-nonylphenol, 4-(1,1,3,3-tetramethylbutyl)-phenol and 2,6-bis(1,1-dimethylethyl)-4-ethylphenol) have been directly extracted from water samples using neat supercritical carbon dioxide and collected on an octadecyl silica (ODS) solid phase trap. The extraction cells were equipped with home-built assemblies containing hydrophobic membranes. The assemblies were inserted at each end of the extraction cell to maintain the water sample inside the extraction cell. In this case, no sample pretreatment step, such as freeze-drying or solid phase extraction (SPE) of the water samples, was needed prior to the supercritical fluid extraction (SFE). Distilled water, spiked with an alkylphenol standard solution at a level of 25 mg/L, was used as a model sample to investigate extraction efficiency as well as collection capability. To obtain quantitative recoveries, a fractionated extraction/clution procedure was adopted. The alkylphenols were finally determined in a leachate water sample and in an industrial effluent sample, where the levels were in the range of 0.2-10 mg/L. (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
Alkylphenols, Aqueous samples, Direct supercritical fluid extraction
in
Journal of Liquid Chromatography & Related Technologies
volume
27
issue
18
pages
2871 - 2888
publisher
Taylor & Francis
external identifiers
  • wos:000224435800005
  • scopus:5444272480
ISSN
1082-6076
DOI
10.1081/JLC-200030500
language
English
LU publication?
yes
id
2c189be4-8938-4800-b01c-9592a40f6b4d (old id 138380)
date added to LUP
2007-06-26 15:54:34
date last changed
2017-01-01 06:51:30
@article{2c189be4-8938-4800-b01c-9592a40f6b4d,
  abstract     = {Akylphenols (4-nonylphenol, 4-(1,1,3,3-tetramethylbutyl)-phenol and 2,6-bis(1,1-dimethylethyl)-4-ethylphenol) have been directly extracted from water samples using neat supercritical carbon dioxide and collected on an octadecyl silica (ODS) solid phase trap. The extraction cells were equipped with home-built assemblies containing hydrophobic membranes. The assemblies were inserted at each end of the extraction cell to maintain the water sample inside the extraction cell. In this case, no sample pretreatment step, such as freeze-drying or solid phase extraction (SPE) of the water samples, was needed prior to the supercritical fluid extraction (SFE). Distilled water, spiked with an alkylphenol standard solution at a level of 25 mg/L, was used as a model sample to investigate extraction efficiency as well as collection capability. To obtain quantitative recoveries, a fractionated extraction/clution procedure was adopted. The alkylphenols were finally determined in a leachate water sample and in an industrial effluent sample, where the levels were in the range of 0.2-10 mg/L.},
  author       = {Sparr Eskilsson, Cecilia and Agren, A and Mathiasson, Lennart and Björklund, Erland},
  issn         = {1082-6076},
  keyword      = {Alkylphenols,Aqueous samples,Direct supercritical fluid extraction},
  language     = {eng},
  number       = {18},
  pages        = {2871--2888},
  publisher    = {Taylor & Francis},
  series       = {Journal of Liquid Chromatography & Related Technologies},
  title        = {Direct supercritical fluid extraction of alkylphenols from spiked and wastewater samples using extraction cells equipped with hydrophobic membrane-assemblies},
  url          = {http://dx.doi.org/10.1081/JLC-200030500},
  volume       = {27},
  year         = {2004},
}