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Trace analysis of p...
Trace analysis of polychlorinated dibenzo-p-dioxins, dibenzofurans and WHO polychlorinated biphenyls in food using comprehensive two-dimensional gas chromatography with electron-capture detection
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- Danielsson, Conny (författare)
- Umeå universitet,Kemiska institutionen
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- Wiberg, Karin (författare)
- Umeå universitet,Kemiska institutionen
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Korytárb, Peter (författare)
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- Bergek, Sture (författare)
- Umeå universitet,Kemiska institutionen
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Brinkman, Udo A.Th. (författare)
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- Haglund, Peter (författare)
- Umeå universitet,Kemiska institutionen
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(creator_code:org_t)
- Elsevier BV, 2005
- 2005
- Engelska.
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Ingår i: Journal of Chromatography A. - : Elsevier BV. - 0021-9673 .- 1873-3778. ; 1086:1-2, s. 61-70
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Trace analysis of 2,3,7,8-polychlorinated dibenzo-p-dioxins (PCDDs), dibenzofurans (PCDFs) and the 12 WHO-PCBs (four non-ortho and eight mono-ortho congeners that have been assigned toxic equivalence factors, TEFs, by the World Health Organisation) was conducted by comprehensive two-dimensional gas chromatography with a micro electron-capture detector (GC x GC-mu ECD). Four food matrices (fish oil from herring, spiked cows' milk, vegetable oil and an eel extract) were analysed by two GC x GC laboratories, and four GC-HRMS laboratories generated reference values. The two GC x GC laboratories used different column combinations for separating the target analytes. For the first dimension, non-polar DB-XLB and VF-1 columns were used, and for the second dimension, an LC-50 liquid crystalline column with unique selectivity for planar compounds. The congener-specific and total toxic equivalence (TEQ) data obtained using DB-XLB x LC-50 were in good agreement with results obtained by the GC-HRMS laboratories. The WHO-PCB data obtained with the VF-1 x LC-50 combination was also good, but the PCDD/F concentrations were sometimes overestimated due to matrix interferences. GC x GC-mu ECD using DB-XLB x LC-50 seems to fulfil the European Community requirements of a screening method for PCDD/F and WHO-PCB TEQ in food.
Nyckelord
- comprehensive two-dimensional gas chromatography
- GC x GC
- mu ECD; PCB
- PCDD/F
- TEF
- TEQ
- quantification
- food
- Dioxins
- GC-HRMS
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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