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Selective extraction of triazine herbicides based on a combination of membrane assisted solvent extraction and molecularly imprinted solid phase extraction

Chimuka, Luke; van Pinxteren, Manuela; Billing, Johan; Yilmaz, Ecevit and Jönsson, Jan Åke LU (2011) In Journal of Chromatography A 1218(5). p.647-653
Abstract
A selective extraction technique based on the combination of membrane assisted solvent extraction and molecularly imprinted solid phase extraction for triazine herbicides in food samples was developed. Simazine, atrazine, prometon, terbumeton, terbuthylazine and prometryn were extracted from aqueous food samples into a hydrophobic polypropylene membrane bag containing 1000 mu L of toluene as the acceptor phase along with 100 mg of MIP particles. In the acceptor phase, the compounds were re-extracted onto MIP particles. The extraction technique was optimised for the type of organic acceptor solvent, amount of molecularly imprinted polymers particles in the organic acceptor phase, extraction time and addition of salt. Toluene as the acceptor... (More)
A selective extraction technique based on the combination of membrane assisted solvent extraction and molecularly imprinted solid phase extraction for triazine herbicides in food samples was developed. Simazine, atrazine, prometon, terbumeton, terbuthylazine and prometryn were extracted from aqueous food samples into a hydrophobic polypropylene membrane bag containing 1000 mu L of toluene as the acceptor phase along with 100 mg of MIP particles. In the acceptor phase, the compounds were re-extracted onto MIP particles. The extraction technique was optimised for the type of organic acceptor solvent, amount of molecularly imprinted polymers particles in the organic acceptor phase, extraction time and addition of salt. Toluene as the acceptor phase was found to give higher triazine binding onto MIP particles compared to hexane and cyclohexane. Extraction time of 120 min and 100 mg of MIP were found to be optimum parameters. Addition of salt increased the extraction efficiency for more polar triazines. The selectivity of the technique was demonstrated by extracting spiked cow pea and corn extracts where clean chromatograms were obtained compared to only membrane assisted solvent extraction or only molecularly imprinted solid phase extraction. The study revealed that this combination may be a simple way of selectively extracting compounds in complex samples. (C) 2010 Elsevier B.V. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Selective extraction, Combination of techniques, Membrane assisted, solvent extraction, Molecular imprinted polymers, Triazines
in
Journal of Chromatography A
volume
1218
issue
5
pages
647 - 653
publisher
Elsevier
external identifiers
  • wos:000286848700002
  • scopus:78650958700
ISSN
0021-9673
DOI
10.1016/j.chroma.2010.12.019
language
English
LU publication?
yes
id
f190b825-0fb6-4c56-9473-db713bbf7766 (old id 1882493)
date added to LUP
2011-04-04 13:34:00
date last changed
2017-10-01 03:59:52
@article{f190b825-0fb6-4c56-9473-db713bbf7766,
  abstract     = {A selective extraction technique based on the combination of membrane assisted solvent extraction and molecularly imprinted solid phase extraction for triazine herbicides in food samples was developed. Simazine, atrazine, prometon, terbumeton, terbuthylazine and prometryn were extracted from aqueous food samples into a hydrophobic polypropylene membrane bag containing 1000 mu L of toluene as the acceptor phase along with 100 mg of MIP particles. In the acceptor phase, the compounds were re-extracted onto MIP particles. The extraction technique was optimised for the type of organic acceptor solvent, amount of molecularly imprinted polymers particles in the organic acceptor phase, extraction time and addition of salt. Toluene as the acceptor phase was found to give higher triazine binding onto MIP particles compared to hexane and cyclohexane. Extraction time of 120 min and 100 mg of MIP were found to be optimum parameters. Addition of salt increased the extraction efficiency for more polar triazines. The selectivity of the technique was demonstrated by extracting spiked cow pea and corn extracts where clean chromatograms were obtained compared to only membrane assisted solvent extraction or only molecularly imprinted solid phase extraction. The study revealed that this combination may be a simple way of selectively extracting compounds in complex samples. (C) 2010 Elsevier B.V. All rights reserved.},
  author       = {Chimuka, Luke and van Pinxteren, Manuela and Billing, Johan and Yilmaz, Ecevit and Jönsson, Jan Åke},
  issn         = {0021-9673},
  keyword      = {Selective extraction,Combination of techniques,Membrane assisted,solvent extraction,Molecular imprinted polymers,Triazines},
  language     = {eng},
  number       = {5},
  pages        = {647--653},
  publisher    = {Elsevier},
  series       = {Journal of Chromatography A},
  title        = {Selective extraction of triazine herbicides based on a combination of membrane assisted solvent extraction and molecularly imprinted solid phase extraction},
  url          = {http://dx.doi.org/10.1016/j.chroma.2010.12.019},
  volume       = {1218},
  year         = {2011},
}