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On-line automated sample preparation for liquid chromatography using parallel supported liquid membrane extraction and microporous membrane liquid-liquid extraction

Sandahl, Margareta LU ; Mathiasson, Lennart LU and Jönsson, Jan Åke LU (2002) In Journal of Chromatography A 975(1). p.211-217
Abstract
An automated system was developed for analysis of non-polar and polar ionisable compounds at trace levels in natural water. Sample work-up was performed in a flow system using two parallel membrane extraction units. This system was connected on-line to a reversed-phase HPLC system for final determination. One of the membrane units was used for supported liquid membrane (SLM) extraction, which is suitable for ionisable or permanently charged compounds. The other unit was used for microporous membrane liquid-liquid extraction (MMLLE) suitable for uncharged compounds. The fungicide thiophanate methyl and its polar metabolites carbendazim and 2-aminobenzimidazole were used as model compounds. The whole system was controlled by means of four... (More)
An automated system was developed for analysis of non-polar and polar ionisable compounds at trace levels in natural water. Sample work-up was performed in a flow system using two parallel membrane extraction units. This system was connected on-line to a reversed-phase HPLC system for final determination. One of the membrane units was used for supported liquid membrane (SLM) extraction, which is suitable for ionisable or permanently charged compounds. The other unit was used for microporous membrane liquid-liquid extraction (MMLLE) suitable for uncharged compounds. The fungicide thiophanate methyl and its polar metabolites carbendazim and 2-aminobenzimidazole were used as model compounds. The whole system was controlled by means of four syringe pumps. While extracting one part of the sample using the SLM technique, the extract from the MMLLE extraction was analysed and vice versa. This gave a total analysis time of 63 min for each sample resulting in a sample throughput of 22 samples per 24 h. (C) 2002 Elsevier Science B.V. All rights reserved. (Less)
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organization
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Contribution to journal
publication status
published
subject
keywords
Fungicides, Microporous membranes, Sample preparation, Supported liquid membranes, carbendazim, fungicide, imidazole derivative, ion, analytic method, article, automation, experimental model, liquid liquid extraction, microporous liquid liquid extraction, online system, priority journal, reversed phase high performance liquid chromatography, sample, supported liquid membrane extraction, syringe, time
in
Journal of Chromatography A
volume
975
issue
1
pages
7 pages
publisher
Elsevier
external identifiers
  • wos:000178947600017
  • pmid:12458761
  • scopus:0037174698
ISSN
0021-9673
DOI
10.1016/S0021-9673(02)00880-4
language
English
LU publication?
yes
id
a330a5eb-8f97-4ac1-ba2e-b110c79f26e5 (old id 324483)
date added to LUP
2007-11-12 14:20:40
date last changed
2017-01-02 10:56:02
@article{a330a5eb-8f97-4ac1-ba2e-b110c79f26e5,
  abstract     = {An automated system was developed for analysis of non-polar and polar ionisable compounds at trace levels in natural water. Sample work-up was performed in a flow system using two parallel membrane extraction units. This system was connected on-line to a reversed-phase HPLC system for final determination. One of the membrane units was used for supported liquid membrane (SLM) extraction, which is suitable for ionisable or permanently charged compounds. The other unit was used for microporous membrane liquid-liquid extraction (MMLLE) suitable for uncharged compounds. The fungicide thiophanate methyl and its polar metabolites carbendazim and 2-aminobenzimidazole were used as model compounds. The whole system was controlled by means of four syringe pumps. While extracting one part of the sample using the SLM technique, the extract from the MMLLE extraction was analysed and vice versa. This gave a total analysis time of 63 min for each sample resulting in a sample throughput of 22 samples per 24 h. (C) 2002 Elsevier Science B.V. All rights reserved.},
  author       = {Sandahl, Margareta and Mathiasson, Lennart and Jönsson, Jan Åke},
  issn         = {0021-9673},
  keyword      = {Fungicides,Microporous membranes,Sample preparation,Supported liquid membranes,carbendazim,fungicide,imidazole derivative,ion,analytic method,article,automation,experimental model,liquid liquid extraction,microporous liquid liquid extraction,online system,priority journal,reversed phase high performance liquid chromatography,sample,supported liquid membrane extraction,syringe,time},
  language     = {eng},
  number       = {1},
  pages        = {211--217},
  publisher    = {Elsevier},
  series       = {Journal of Chromatography A},
  title        = {On-line automated sample preparation for liquid chromatography using parallel supported liquid membrane extraction and microporous membrane liquid-liquid extraction},
  url          = {http://dx.doi.org/10.1016/S0021-9673(02)00880-4},
  volume       = {975},
  year         = {2002},
}