Development of new cleanup method of polychlorinated dibenzo-p-dioxins/dibenzofurans in fish by freezing-lipid filtration
- Authors
- Ahn, Yun Gyong; Seo, Jungju; Shin, Jeoung Hwa; Khim, Jeehyeong; Hong, Jongki
- Issue Date
- 18-8월-2006
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- polychlorinated dibenzo-p-dioxins/dibenzofurans (PCDDs/Fs); fish; freezing-lipid filtration; automatic parallel LC; HRGC/HRMS
- Citation
- ANALYTICA CHIMICA ACTA, v.576, no.1, pp.31 - 36
- Indexed
- SCIE
SCOPUS
- Journal Title
- ANALYTICA CHIMICA ACTA
- Volume
- 576
- Number
- 1
- Start Page
- 31
- End Page
- 36
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/123117
- DOI
- 10.1016/j.aca.2006.03.010
- ISSN
- 0003-2670
- Abstract
- Freezing-lipid filtration as a new method has been developed for the rapid determination of polychlorinated dibenzo-p-dioxins/dibenzofurans (PCDDs/Fs) in biological samples. This method can effectively reduce the time of sample pretreatment, labor and amount of solvents compared with conventional methods. By freezing-lipid filtration procedure, about 90% of lipids in extract could be removed without any significant loss of PCDD/Fs. For further cleanup of extracts after freezing-lipid filtration, automatic parallel LC columns including silica gel, alumina and carbon columns were applied. During automatic parallel LC columns cleanup, most of co-extracted interferences such as residue lipids and fatty acids could be eliminated and dioxins could be separated from many other dioxin-like congeners such as polychlorinated biphenyls by this procedure. The extracts after cleanup were analyzed by high-resolution gas chromatography (HRGC)/high-resolution mass spectrometry (HRMS) using an isotope dilution method. The average recoveries and relative standard deviation (R.S.D.) of 17 native congeners in the spiked fish samples at 8-80 pg/g (n = 3) were ranged between 85.3 and 117.2% and 5.7-20.3%, respectively. (c) 2006 Elsevier B.V. All rights reserved.
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Collections - College of Engineering > School of Civil, Environmental and Architectural Engineering > 1. Journal Articles
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