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Determination of dissolved and particle-bound PCB congeners at ultra-trace concentrations in water

Zorita, Saioa LU and Mathiasson, Lennart LU (2005) In International Journal of Environmental Analytical Chemistry 85(8). p.531-541
Abstract
Adsorption of 10 PCB congeners in aqueous solutions on glass-fibre filters taken from different boxes but of the same type were not significantly different. The standard deviations using filters from the same box were below 10% at concentration levels of 4.1 ng L-1. At this level, the adsorption of dissolved PCB at the filters was in the range of 5-20%. depending oil the congener. This led to a procedure for determination of dissolved and particle-bound congener in authentic landfill leachate, which included correction for adsorption losses. The procedure was based oil filtration through glass-fibre filters, followed by trapping of the PCB in the eluate on solid-phase extraction (SPE) disks. After separate supercritical fluid (SFE)... (More)
Adsorption of 10 PCB congeners in aqueous solutions on glass-fibre filters taken from different boxes but of the same type were not significantly different. The standard deviations using filters from the same box were below 10% at concentration levels of 4.1 ng L-1. At this level, the adsorption of dissolved PCB at the filters was in the range of 5-20%. depending oil the congener. This led to a procedure for determination of dissolved and particle-bound congener in authentic landfill leachate, which included correction for adsorption losses. The procedure was based oil filtration through glass-fibre filters, followed by trapping of the PCB in the eluate on solid-phase extraction (SPE) disks. After separate supercritical fluid (SFE) extractions, with carbon dioxide, of the filters as well as of the SPE disks, the extracts were analysed on a two-column capillary GC-ECD system. Corrections for congener adsorption on glass-fibre filters were made, from which corrected distribution constants between particle-bound and dissolved PCB congener in the water phase could be obtained for authentic landfill leachate. These values (10(4)-10(5)) agreed well with those obtained by others. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
International Journal of Environmental Analytical Chemistry
volume
85
issue
8
pages
531 - 541
publisher
Taylor & Francis
external identifiers
  • wos:000231150100003
  • scopus:33646707885
ISSN
1029-0397
DOI
10.1080/03067310500139024
language
English
LU publication?
yes
id
bb5ca962-ba7d-469c-bfb2-d43919f5480a (old id 150980)
date added to LUP
2007-06-28 11:07:01
date last changed
2017-01-01 04:59:33
@article{bb5ca962-ba7d-469c-bfb2-d43919f5480a,
  abstract     = {Adsorption of 10 PCB congeners in aqueous solutions on glass-fibre filters taken from different boxes but of the same type were not significantly different. The standard deviations using filters from the same box were below 10% at concentration levels of 4.1 ng L-1. At this level, the adsorption of dissolved PCB at the filters was in the range of 5-20%. depending oil the congener. This led to a procedure for determination of dissolved and particle-bound congener in authentic landfill leachate, which included correction for adsorption losses. The procedure was based oil filtration through glass-fibre filters, followed by trapping of the PCB in the eluate on solid-phase extraction (SPE) disks. After separate supercritical fluid (SFE) extractions, with carbon dioxide, of the filters as well as of the SPE disks, the extracts were analysed on a two-column capillary GC-ECD system. Corrections for congener adsorption on glass-fibre filters were made, from which corrected distribution constants between particle-bound and dissolved PCB congener in the water phase could be obtained for authentic landfill leachate. These values (10(4)-10(5)) agreed well with those obtained by others.},
  author       = {Zorita, Saioa and Mathiasson, Lennart},
  issn         = {1029-0397},
  language     = {eng},
  number       = {8},
  pages        = {531--541},
  publisher    = {Taylor & Francis},
  series       = {International Journal of Environmental Analytical Chemistry},
  title        = {Determination of dissolved and particle-bound PCB congeners at ultra-trace concentrations in water},
  url          = {http://dx.doi.org/10.1080/03067310500139024},
  volume       = {85},
  year         = {2005},
}