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Selective pressurized liquid extraction of polychlorinated biphenyls from fat-containing food and feed samples. Influence of cell dimensions, solvent type, temperature and flush volume

Sporring, Sune LU and Björklund, Erland LU (2004) In Journal of Chromatography A 1040(2). p.155-161
Abstract
Sulphuric acid impregnated silica was used for the lipid free extraction of polychlorinated biphenyls from fat containing food and feed matrices using pressurized liquid extraction on a Dionex ASE300, with 34 mL cells. Data were compared to a previous publication where extractions had been performed on a Dionex ASE200, with 33 mL cells. Four different fat/fat retainer ratios (FFRs) were tested (0.100, 0.075, 0.050 and 0.025) at 50 and 100 °C using n-pentane, n-hexane or n-heptane as extraction solvent. The best results were obtained with a FFR of 0.025 when applying a temperature of 100 °C. Both n-pentane and n-heptane were capable of replacing n-hexane as extraction solvent. A flush volume of 60% was sufficient as suggested in US... (More)
Sulphuric acid impregnated silica was used for the lipid free extraction of polychlorinated biphenyls from fat containing food and feed matrices using pressurized liquid extraction on a Dionex ASE300, with 34 mL cells. Data were compared to a previous publication where extractions had been performed on a Dionex ASE200, with 33 mL cells. Four different fat/fat retainer ratios (FFRs) were tested (0.100, 0.075, 0.050 and 0.025) at 50 and 100 °C using n-pentane, n-hexane or n-heptane as extraction solvent. The best results were obtained with a FFR of 0.025 when applying a temperature of 100 °C. Both n-pentane and n-heptane were capable of replacing n-hexane as extraction solvent. A flush volume of 60% was sufficient as suggested in US Environmental Protection Agency Method 3545. The applicability of the method was demonstrated for naturally contaminated fish meal as well as various spiked and certified materials. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Polychlorinated biphenyls, Food analysis, Extraction methods, Pressurized liquid extraction
in
Journal of Chromatography A
volume
1040
issue
2
pages
155 - 161
publisher
Elsevier
external identifiers
  • wos:000221837600001
  • pmid:15230521
  • scopus:2542497768
ISSN
0021-9673
DOI
10.1016/j.chroma.2004.04.022
language
English
LU publication?
yes
id
bb02e103-2fe3-4ca4-95f0-807c228b2768 (old id 141301)
date added to LUP
2007-06-27 16:13:37
date last changed
2017-08-27 05:08:56
@article{bb02e103-2fe3-4ca4-95f0-807c228b2768,
  abstract     = {Sulphuric acid impregnated silica was used for the lipid free extraction of polychlorinated biphenyls from fat containing food and feed matrices using pressurized liquid extraction on a Dionex ASE300, with 34 mL cells. Data were compared to a previous publication where extractions had been performed on a Dionex ASE200, with 33 mL cells. Four different fat/fat retainer ratios (FFRs) were tested (0.100, 0.075, 0.050 and 0.025) at 50 and 100 °C using n-pentane, n-hexane or n-heptane as extraction solvent. The best results were obtained with a FFR of 0.025 when applying a temperature of 100 °C. Both n-pentane and n-heptane were capable of replacing n-hexane as extraction solvent. A flush volume of 60% was sufficient as suggested in US Environmental Protection Agency Method 3545. The applicability of the method was demonstrated for naturally contaminated fish meal as well as various spiked and certified materials.},
  author       = {Sporring, Sune and Björklund, Erland},
  issn         = {0021-9673},
  keyword      = {Polychlorinated biphenyls,Food analysis,Extraction methods,Pressurized liquid extraction},
  language     = {eng},
  number       = {2},
  pages        = {155--161},
  publisher    = {Elsevier},
  series       = {Journal of Chromatography A},
  title        = {Selective pressurized liquid extraction of polychlorinated biphenyls from fat-containing food and feed samples. Influence of cell dimensions, solvent type, temperature and flush volume},
  url          = {http://dx.doi.org/10.1016/j.chroma.2004.04.022},
  volume       = {1040},
  year         = {2004},
}