References of "Focant, Jean-François"
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See detailLevels of PCDD/Fs and PCBs in Camel Milk (Camelus Bactrianus and Camelus Dromedarius) from Kazakhstan
Konuspeyeva, G; Faye, B; De Pauw, Edwin ULg et al

in Organohalogen Compounds (2011), 73

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See detailComprehensive Two-Dimensional Gas Chromatography Time of Flight Mass Spectrometry (GCxGC-TOFMS) for Environmental Forensic Investigations in Developing Countries
de Vos, Jayne; Dixon, Roger; Vermeulen, Gerhard et al

in Chemosphere (2011), 82

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See detailDioxins in Human Milk from Different Regions of France: Pilot of the French Longitudinal Study of Children (ELFE)
Vandentoren, S; Frery, N; Bidondo, ML et al

in Organohalogen Compounds (2011), 73

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See detailReproduction of European eel jeopardised by high levels of dioxins and dioxin-like PCBs
Geeraerts, C.; Focant, Jean-François ULg; Eppe, Gauthier ULg et al

in Science of the Total Environment (2011), 409

ioxins, furans and dioxin-like polychlorinated biphenyls (PCBs) were analysed in muscle tissue from yellow phased European eel (Anguilla anguilla) from 38 sites in Belgium. Dioxin concentrations in eel ... [more ▼]

ioxins, furans and dioxin-like polychlorinated biphenyls (PCBs) were analysed in muscle tissue from yellow phased European eel (Anguilla anguilla) from 38 sites in Belgium. Dioxin concentrations in eel vary considerably between sampling locations, indicating that yellow eel is a good indicator of local pollution levels. Measured levels of dioxin-like PCBs are much higher than those of the dioxins and furans. In the majority of the sites, eel has levels considered to be detrimental for their reproduction. Field levels of dioxin and dioxin-like PCBs are therefore suggested as an additional causal factor contributing to the decline of the European eel. 42% of the sampling sites show especially dioxin-like PCB levels exceeding the European consumption level (with a factor 3 on average). Human consumption of eel, especially in these highly contaminated sites, seems unjustified. [less ▲]

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See detailAttogram level measurement of POPs in human: From adipose tissue to DBS
Focant, Jean-François ULg; Welch; Turner et al

Conference (2010, December)

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See detailA quick and dirty introduction to GCxGC
Focant, Jean-François ULg

Scientific conference (2010, October)

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See detailImplementation of Automated Procedures in Routine at CART
Focant, Jean-François ULg

Scientific conference (2010, October)

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See detailThe Total Solution for Rapid Sample Preparation: The Procedure
Focant, Jean-François ULg

Scientific conference (2010, September)

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See detailDietary intake of PCDD/F and dioxin-like PCB for the Belgian population
Focant, Jean-François ULg; Windal, I.; Vandevijvere, S. et al

in Organohalogen Compounds (2010, September)

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See detailDioxin levels in European eels, a Belgian study
Focant, Jean-François ULg; Geeraerts, C.; Eppe, Gauthier ULg et al

in Organohalogen Compounds (2010, September)

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See detailPLE for extraction of dioxins in animal feed and ingredients
Focant, Jean-François ULg; Scholl, Georges ULg; De Pauw, Edwin ULg et al

in Organohalogen Compounds (2010, September), 72

Within the entire complex procedure required to measure dioxins and related compounds in biological matrices, the extraction step is often seen as a well controlled step. Although maybe true for many ... [more ▼]

Within the entire complex procedure required to measure dioxins and related compounds in biological matrices, the extraction step is often seen as a well controlled step. Although maybe true for many human and food-related matrices, the situation is very different for animal feed and feed ingredients. Specific European guidelines (e.g. Commission Directive 2006/13/EC, Commission Regulation (EC) No 152/2009) exist for animal feed but only list general requirements for the various stages of the procedure. The liberty is left to laboratories to select, for example, the tools used for the extraction steps. This has the advantage to allow ‘in-house’ methods to be used, as long as they satisfy with all the requirements of the EU Regulation. In that context, it is foreseen that the European Committee for Standardization (CEN) will soon propose a standard for the determination of PCDD/Fs and PCBs in animal feed that would be the reference method to be used to solve potential issues in case of dispute over results reported from different laboratories. A major point of concern is that it has been reported earlier1 that most commonly accepted extraction procedure can conduct to significantly different results for the extraction of dioxins and related compounds in feed and feed additives such as mineral clays and various oxides. Several non-instrumental and instrumental automated approaches are available for extraction. Soxhlet extractors have long been the most used tools for non-instrumental extraction of solids. They have proven to be very efficient but some limitations encouraged the development of other approaches based on instrumental techniques. For feed extraction, pressurized liquid extraction (PLE) (also branded as accelerated solvent extraction ASE®) is the technique of choice for high sample throughput. This study reports on the investigation of the use of various solvent mixtures, extraction temperatures, and instruments (parallel PLE, sequential ASE®) for the extraction of 17 PCDD/Fs and 12 dioxin-like PCBs in mineral clay, bovine feed, fish meal, and in-house quality control animal compound feed. [less ▲]

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See detailThe smell of death - a new method to detect buried remains: GCxGC-TOFMS
Dekeirsschieter, Jessica ULg; Brasseur, Catherine ULg; De Koning, Sjaak et al

Conference (2010, September)

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See detailTotal Solution for Rapid Sample Preparation
Focant, Jean-François ULg

Conference (2010, July)

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See detailA ‘cook book’ method for dioxin & PCBs analysis
Focant, Jean-François ULg; Shirkhan; Patterson Jr

Poster (2010, June)

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See detailInvestigations of the GCxGC-HRMS coupling
Focant, Jean-François ULg; Patterson Jr

Conference (2010, June)

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