Targeted Screening and Quantification of dl-PCBs and Dioxins in Various Foodstuffs by Programmed-temperature Vaporizer Large-volume Injection Coupled to GC–MS

Authors

  • Ngoc Huy Ho Official Food and Veterinary Control Authority of Geneva, Quai Ernest-Ansermet 22, CH-1205 Geneva, Switzerland. ngoc-huy.ho@etat.ge.ch
  • Aurélie Bugey Official Food and Veterinary Control Authority of Geneva, Quai Ernest-Ansermet 22, CH-1205 Geneva, Switzerland
  • Pierre Zimmerli Official Food and Veterinary Control Authority of Geneva, Quai Ernest-Ansermet 22, CH-1205 Geneva, Switzerland
  • Joëlle Nançoz Official Food and Veterinary Control Authority of Geneva, Quai Ernest-Ansermet 22, CH-1205 Geneva, Switzerland
  • Didier Ortelli Official Food and Veterinary Control Authority of Geneva, Quai Ernest-Ansermet 22, CH-1205 Geneva, Switzerland
  • Patrick Edder Official Food and Veterinary Control Authority of Geneva, Quai Ernest-Ansermet 22, CH-1205 Geneva, Switzerland

DOI:

https://doi.org/10.2533/chimia.2014.732

Keywords:

Dioxin-like polychlorinated biphenyls, Large volume injection, Polychlorinated dibenzofurans, Polychlorinated dibenzo-p-dioxins, Tandem mass spectrometry

Abstract

In 2009, high concentrations of polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs) and dioxin-like polychlorinated biphenyls (dl-PCBs) were found in soils located near the municipal garbage incinerator of Geneva. The matter of food contamination in this area was raised. Based on exposure criteria, a strategy of analysis of animal fats has been established with farmers in the Geneva area. Most methods of analysis of dl-PCBs, dioxins and furans, are based on gas chromatography coupled to high-resolution mass spectrometry (GC-HRMS) and considered as the reference methodology. An innovative approach was developed by programmed-temperature vaporizer large-volume injection (PTV-LV) and gas chromatography coupled with triple quadrupole mass spectrometry (GC-MS/MS) analysis. This analytical method was validated and was found suitable for screening and quantification of target compounds in animal fats (beef, pork, sheep, etc. ). PTV-LV coupled to GC-MS/MS appeared to be a good alternative compared to the GC-HRMS strategy, offering a good compromise between sensitivity, versatility of instrumentation, and economical aspects. A survey of 121 samples was conducted.

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Published

2014-10-29

How to Cite

[1]
N. H. Ho, A. Bugey, P. Zimmerli, J. Nançoz, D. Ortelli, P. Edder, Chimia 2014, 68, 732, DOI: 10.2533/chimia.2014.732.

Issue

Section

Scientific Articles