%0 Journal Article %J Food Chem %D 2023 %T Modelling the pesticide transfer during tea and herbal tea infusions by the identification of critical infusion parameters. %A Philippe Szternfeld %A Claire Demoury %A Wendy Brian %A Jean-Yves Michelet %A Virginie Van Leeuw %A Els Van Hoeck %A Laure Joly %K Databases, Factual %K Flavoring Agents %K Pesticide residues %K Pesticides %K Tea %K Teas, Herbal %X

Pesticide residues in tea and herbal tea often exceed EU maximum residue limits. Consideration of the transfer of pesticides from the leaves (called transfer factors) to the brew is essential to assess the associated risk. This study identified infusion parameters influencing the transfer behaviour of 61 pesticides and elaborated a predictive model for pesticides with unknown transfer factors in black, green, herbal and flavoured teas. Tea type and the presence of flavours were the criteria that most influenced the pesticide transfer. Interestingly, infusion parameters that are individual and area dependent such as infusion time, temperature and water hardness, did not play a significant role. Beta regression models developed to characterise pesticide behaviour during infusion showed good predictions for most pesticides and revealed that log (P) was the main physico-chemical parameter to estimate the pesticide transfer. The transfer factors database and validated models are valuable tools for improving risk assessment.

%B Food Chem %V 429 %8 2023 Dec 15 %G eng %R 10.1016/j.foodchem.2023.136893 %0 Journal Article %J Turkish Journal of Agriculture - Food Science and Technology %D 2022 %T Pesticide Use in Market Gardening and Perceived Risk of Consumers Exposed to Pesticide Residues %A Toumi, Khaoula %A Laure Joly %A Nafissa, Soudani %A Abdelkarim, Abbes %A Bruno, Schiffers %A Habiba, Glida-Gnidez %K Consumers %K Market gardeners %K Pesticide residues %K Risk perception %K Vegetables %X

Pesticides are commonly applied in market gardening to improve productivity and pest control. Pesticide residues could be persistent in vegetables and generate a potential health hazard for consumers. This study has been carried out in Tunisia to assess the perceived risk of consumers exposed to pesticide residues remaining in vegetables. Two surveys with different questionnaires were conducted among 30 market gardeners and 50 households located in the Djebeniana delegation (Sfax governorate, Tunisia) in order to analyze the phytosanitary practices of farmers on the one hand, and to better understand the attitude related to vegetable consumption and awareness on pesticide residues, on the other hand. The results revealed that various phytosanitary products have been used by market gardeners (43 commercial products containing 39 different active substances (AS)). Among these AS, abamectin and methomyl are considered as highly hazardous according the WHO classification. According to the behavior of pesticides in plants, more than half of the AS. (54%) are systemic and can be absorbed by the plant and moved around in its tissues. Furthermore, the majority of the surveyed farmers had never undergone agricultural training, which is a real handicap with respect to good phytosanitary practices. After applying pesticides, the pre-harvest interval was regularly not respected by almost half of the interviewed market gardeners. In addition, the study showed that all consumers washed their vegetables before consumption, but more than half of the respondents (54%) wash their vegetables for less than a minute (simply passing them under running water). In the light of these results, it appears that consumers may be exposed to pesticide residues from vegetables on the Tunisian market, with potential effects on their health.

%B Turkish Journal of Agriculture - Food Science and Technology %V 10 %8 Jun-3-2022 %G eng %N 6 %R 10.24925/turjaf.v10i6.1072-1082.5002 %0 Journal Article %J Food Additives & Contaminants: Part B %D 2022 %T Pesticides, trace elements and pharmaceuticals in tea samples available in Belgian retail shops and the risk associated upon acute and chronic exposure %A Philippe Szternfeld %A Daniela Montalvo %A Julie Broos %A Karlien Cheyns %A Laure Joly %A Celine Vanhee %K Pesticide residues %K tea and herbal teas %K Trace Elements %X

Over the last decade, the consumption of tea and herbal tea has gained more and more popularity across the globe, but the potential presence of chemical contaminants (e.g. pesticides, trace elements, synthetic drugs) may raise health concerns. This study analysed selected teas available in Belgian retail stores and performed a risk assessment for these samples. No chemical adulteration could be detected in dry tea material. More than 38% of the dry leaves samples contained at least one pesticide exceeding the maximal residue level (MRL) set by the EU. However, further risk assessment, based on the values of pesticide residues and the toxic trace elements encountered in the brew, demonstrate that the consumption of these teas will not give rise to health concerns. Nonetheless, attention should be given to the leaching potential of nickel from teas and the presence of arsenic in brews from algae containing teas.

%B Food Additives & Contaminants: Part B %8 dec 2022 %G eng %R 10.1080/19393210.2022.2145617 %0 Journal Article %J Food Additives & Contaminants: Part B %D 2022 %T Polycyclic aromatic hydrocarbons in spices and dried herbs and associated risk for the Belgian population %A Philippe Szternfeld %A Alexios Marakis %A Scippo, Marie-Louise %A Els Van Hoeck %A Laure Joly %K Belgium; GC-MS/MS; PAH; dried herbs; monitoring; risk assessment; spices %X

A total of 120 spices and herbs bought on the Belgian market have been analysed for occurrence of the four EU regulated polycyclic aromatic hydrocarbons (ΣPAH4). Samples were sorted in three groups according to their use: traditional spices, exotic spices, and herbs. Benzo[a]pyrene has been detected in 56% of samples, while ΣPAH4 were found in 96% of samples. ΣPAH4 were evenly distributed among the three groups with a median content of 7.2 for traditional spices, 5.5 for exotic spices and 6.0 µg kg-1 for herbs. According to the EU legislation, three samples were exceeding maximal limits, with a maximum ΣPAH4 content of 164 µg kg-1. The ΣPAH4 dietary intake has been estimated at 1.4 and 27.8 ng day-1 for average and high consumption, respectively. The risk for the consumer was evaluated by using the margin of exposure (MOE). In all cases, MOE were >20 000, indicating a low concern for the population.

%B Food Additives & Contaminants: Part B %V 15 %8 Feb-10-2022 %G eng %N 4 %R 10.1080/19393210.2022.2106518 %0 Generic %D 2021 %T Analyse des résidus de pesticides dans les raisins de cuve par chromatographies liquide et gazeuse couplées à une spectrométrie de masse en tandem %A G. Mechichi %A M.L. Scippo %A H. Chaabane %A Laure Joly %B Groupes français de recherches sur les pesticides %8 2021 %G eng %0 Generic %D 2021 %T An approach to analysis of short- and medium-chained chlorinated paraffins in food by GC-MS and LC-HRMS %A T.J. McGrath %A Franck Limonier %A G. Poma %A J. Bombeke %A Els Van Hoeck %A Laure Joly %A A. Covaci %K paraffins %B LCGC virtual symposium %G eng %0 Journal Article %J Environmental Pollution %D 2021 %T Concentrations and distribution of chlorinated paraffins in Belgian foods %A Thomas J. McGrath %A Franck Limonier %A Poma, Giulia %A Jasper Bombeke %A Raf Winand %A Kevin Vanneste %A Mirjana Andjelkovic %A Els Van Hoeck %A Laure Joly %A Covaci, Adrian %K chlorinated paraffins %K food %K LCCPs %K MCCPs %K SCCPs %X

This study reports on concentrations of short- and medium-chain chlorinated paraffins (SCCPs and MCCPs, respectively) in a wide range of food samples (n = 211) purchased in Belgium during 2020. Samples were analysed by gas chromatography-mass spectrometry (GC-MS) and quantified using chlorine content calibration. ∑SCCPs were present above LOQ in 25% of samples with an overall range of <LOQ to 58 ng/g wet weight (ww), while ∑MCCPs were identified in 66% of samples ranging from <LOQ to 250 ng/g ww. ∑MCCP concentrations were greater than those of ∑SCCPs in all 48 samples in which both groups were detected with an average ∑MCCP/∑SCCP ratio of 5.8 (ranging from 1.3 to 81). In general, the greatest CP concentrations were observed in foods classified as animal and vegetable fats and oils and sugar and confectionary for both SCCPs and MCCPs. Significant correlations between lipid content in food samples and CP levels illustrated the role of lipids in accumulating CPs within foodstuffs, while industrial processing, food packaging and environmental conditions are each likely to contribute to overall CP loads. Selected samples (n = 20) were further analysed by liquid chromatography-high resolution MS (LC-HRMS) to investigate homologue profiles and the occurrence of long-chain CPs (LCCPs). LCCPs were detected in 35% of the 20 subset samples while the HRMS results for SCCPs and MCCPs matched closely with those obtained by GC-MS. This study reveals the widespread occurrence of SCCPs and MCCPs in Belgian food and indicates that LCCPs may represent a substantial contribution to overall CP levels in foodstuffs.

%B Environmental Pollution %V 291 %8 Jan-12-2021 %G eng %R 10.1016/j.envpol.2021.118236 %0 Generic %D 2021 %T Etude des facteurs d’infusion pour les résidus de pesticides présents dans le thé et les infusions %A Philippe Szternfeld %A Claire Demoury %A Virginie Van Leeuw %A Jean-Yves Michelet %A F. Scholz %A Els Van Hoeck %A Laure Joly %B Comité Scientifique de l'AFSCA - juin 2021 %I Comité Scientifique de l'AFSCA %8 6/25/2021 %G eng %0 Generic %D 2021 %T Modélisation du transfert des pesticides des feuilles de thés vers les eaux d’infusion %A Philippe Szternfeld %A Claire Demoury %A Virginie Van Leeuw %A J-Y. Michelet %A F. Scholz %A Els Van Hoeck %A Laure Joly %K Pesticides %K thé %B Groupes français de recherches sur les pesticides %8 2021 %G eng %0 Journal Article %J Food Control %D 2021 %T Optimization and validation of an analytical method for the quantification of short- and medium-chained chlorinated paraffins in food by gas chromatography-mass spectrometry %A Thomas J. McGrath %A Poma, Giulia %A Jasper Bombeke %A Franck Limonier %A Els Van Hoeck %A Laure Joly %A Covaci, Adrian %K Chlorinated alkanes %K chlorinated paraffins %K food %K gas chromatography %K Mass Spectrometry %X

This work describes the optimization and validation of an analytical method for the quantification of short- and medium-chained chlorinated paraffins (SCCPs and MCCPs, respectively) in a range of food matrices using gas chromatography-electron capture negative ionization-mass spectrometry (GC-ECNI/MS). A dispersive solid phase extraction (dSPE) method was optimized for fish, meat, oil, milk and whole-grain cereal followed by clean-up with concentrated sulfuric acid and acid silica. Fractionation using silica cartridges efficiently removed a number of potentially interfering halogenated compound classes from sample extracts while retaining 96% of ∑SCCPs and 99% of ∑MCCPs. Limits of quantification (LOQs) estimated for food samples ranged from 0.7 to 6.0 ng/g wet weight (ww) for ∑SCCPs and 1.3–12 ng/g ww for ∑MCCPs. The applicability of the optimized protocol was assessed in each of the described food matrices via repeated analysis (n = 3) of samples fortified with SCCP 55.5%Cl and MCCP 57%Cl technical mixtures at two concentration levels and spiked lard samples from a recent European Union Reference Laboratory (EURL) interlaboratory study on CPs in food. The EURL's accuracy criteria was met for both homologue groups in all food matrices with overall accuracy in the range of 76–130% for in-house spiked samples and 57–150% for the EURL lard analysis. Excellent precision was observed for most samples with relative standard deviation (RSD) between replicates (n = 3) ≤ 12% for ∑SCCPs and ≤17% for ∑MCCPs in all food matrices analysed. The selection of the internal standard was a significant factor in the accuracy of the method and highlights the strong need for more appropriate isotopically labelled CP standards.

%B Food Control %V 119 %8 Jan-01-2021 %G eng %R 10.1016/j.foodcont.2020.107463 %0 Generic %D 2021 %T Pesticide residues in vegetables and perception of risk for consumers %A K. Toumi %A Laure Joly %A N. Soudani %A A. Abbes %A B. Schiffers %A H. Glida %X

72nd International symposium on crop protection

%B 72nd International symposium on crop protection %8 2021 %G eng %0 Generic %D 2021 %T Pesticides transfer from tea leaves to tea brew: identification of critical infusion parameters and database creation  %A Philippe Szternfeld %A Claire Demoury %A Virginie Van Leeuw %A J-Y. Michelet %A F. Scholz %A Els Van Hoeck %A Laure Joly %B EURLs pesticides - joint workshop 2021 %I EURLs pesticides - joint workshop 2021 %C Videoconference - Almeria %8 22/09/2021 %G eng %0 Government Document %D 2021 %T Presence of chlorinated paraffins in foodstuffs and intake of the belgian population %A Laure Joly %A Thomas J. McGrath %A Franck Limonier %A Giulia Poma %A Jasper Bombeke %A Raf Winand %A Kevin Vanneste %A Mirjana Andjelkovic %A Els Van Hoeck %A Adrian Covaci %K chlorinated paraffins %B LABINFO %I FAVV %C Brussels, Belgium %V 20 %8 12/2021 %G eng %& 13 %0 Journal Article %J Food Control %D 2021 %T Retrospective survey of unauthorized genetically modified bacteria harbouring antimicrobial resistance genes in feed additive vitamin B2 commercialized in Belgium: Challenges and solutions %A Marie-Alice Fraiture %A Laure Joly %A Els Vandermassen %A Delvoye, Maud %A D. Van Geel %A Jean-Yves Michelet %A Els Van Hoeck %A Nathalie De Jaeger %A N. Papazova %A Nancy Roosens %K Antimicrobial resistance genes %K Feed additive vitamin B2 %K food and feed safety %K survey %K Unauthorized genetically modified microorganisms %X

In Belgium, an official control plan was established in 2016 to detect the potential presence of an unauthorized genetically modified (GM) Bacillus subtilis RASFF2014.1249 strain in commercialized feed additive vitamin B2 products. To this end, two real-time PCR markers specific to this unauthorized genetically modified microorganism (GMM), named UGMVit-B2 and 558, were used. In the present study, the first four-year results from 67 feed additive vitamin B2 samples from the official control are presented. It includes 5 samples positive for real-time PCR methods specific to the unauthorized GM B. subtilis RASFF2014.1249 strain and has led to the RASFF2018.2755 and RASFF2019.3216 notifications. Moreover, a retrospective study using the same feed additive vitamin B2 samples was performed, allowing to provide a first picture of GM bacterial contaminations. It consisted in a first-line screening strategy gathering available PCR-based methods targeting both the B. subtilis species, frequently used to produce vitamin B2, and a set of antimicrobial resistance (AMR) genes commonly harboured as selection marker by GM bacteria used to produce microbial fermentation products. On this basis, suspicious samples contaminated with additional unknown GM bacterial strains as well as potential health and environmental risks related to the unexpected presence of full-length AMR genes could be highlighted. In addition, the possible complementary use of additional data, like chloramphenicol presence and DNA concentration, as indicators for GMM contaminations was assessed. Based on results generated in the present study, the relevance to use the proposed first-line screening strategy supplemented by indicators in order to strengthen the current control strategy was emphasized.

%B Food Control %V 119 %8 Jan-01-2021 %G eng %R 10.1016/j.foodcont.2020.107476 %0 Journal Article %J Human and Ecological Risk Assessment: An International Journal %D 2020 %T Biological monitoring of exposure to pesticide residues among Belgian florists %A Toumi, Khaoula %A Laure Joly %A Christiane Vleminckx %A Schiffers, Bruno %K biological monitoring %K florists %K Pesticide residues %K Risk Assessment %X

Many pesticides applied in cut flowers can be readily absorbed through the skin of florists during preparing bouquets and handling contaminated flowers. A study was conducted among volunteer Belgian florists in order to assess their total exposure by measuring concentrations of pesticides (parent compounds and metabolites) in their urines. A total of 42 urine samples (24-h urines) were collected from florists during their professional activities, on the three most important commercial periods. The concentrations of pesticide residues and metabolites in urine samples were analyzed with a multiresidue liquid chromatography tandem mass spectrometry method, after an ethyl acetate extraction. The results are compared with those of a control group of 42 subjects not occupationally exposed to pesticides, collected in the same periods. A total of 70 residues (56 pesticides and 14 metabolites) were identified, with an average of about eight pesticide residues and metabolites per florist’s urine sample and an average total concentration per sample of 4.3 µg/g creatinine, ranging from 0.2 to 67 µg/g creatinine. Significantly higher urinary excretion of metabolites (t-test) was found in florists than in control group. These results demonstrate that Belgian florists are exposed daily to pesticide residues with a potential effect on their health.

%B Human and Ecological Risk Assessment: An International Journal %V 26 %8 Mar-03-2020 %G eng %N 3 %R 10.1080/10807039.2018.1528860 %0 Report %D 2019 %T Cut flowers contaminated by pesticide residues: what is the risk for florists? %A K. Toumi %A Laure Joly %A Christiane Vleminckx %A B. Schiffers %8 2019 %G eng %0 Generic %D 2019 %T Evaluation de l’exposition humaine aux résidus de pesticides à l’aide de bracelets en silicone %A Laure Joly %A Raf Aerts %A Philippe Szternfeld %A K Tsilikas %A Koen De Cremer %A Philippe Castelain %A M Aerts %A J Van Orshoven %A B Somers %A M Ghendrickx %A Mirjana Andjelkovic %A An Van Nieuwenhuyse %B 49e congrès du Groupe Français de recherche sur les Pesticides %8 2019 nov 20 %G eng %0 Journal Article %J Human and Ecological Risk Assessment: An International Journal %D 2019 %T Exposure of workers to pesticide residues during re-entry activities: A review %A Toumi, Khaoula %A Laure Joly %A Christiane Vleminckx %A Schiffers, Bruno %K Pesticide residues %K re-entry %K Risk Assessment %K Workers %X

Workers may be exposed to pesticide residues when they enter an area that has been previously treated in order to realize different tasks (e.g., for pruning, cutting, picking, harvesting, pest scouting) or to handle a contaminated crop commodity (e.g., sorting, bundling, packing). A review of the scientific literature on workers exposed to pesticide residues during re-entry tasks provides a comprehensive view of possible exposure routes and a better understanding of the risk assessment context, threshold values, and calculation methodology. Methods assessing the risk to workers health are also reported and discussed. The impact of re-entry activities on health and factors affecting workers exposure are examined. Finally, solutions and mitigation measures aiming to reduce their exposure to pesticide residues are recommended.

%B Human and Ecological Risk Assessment: An International Journal %V 25 %8 12 jan 2019 %G eng %N 8 %& 2193 %R 10.1080/10807039.2018.1485092 %0 Generic %D 2019 %T Levels of Persistent organic pollutants in breast milk: Belgian results from the 6 th WHO-coordinated survey %A Ilse Van Overmeire %A Laure Joly %A G. Malarvannan %A G. Poma %A A. Covaci %A Svetlana V. Malysheva %A A. Dussart %A Joris Van Loco %A Mirjana Andjelkovic %K breast milk %K PERSISTENT ORGANIC POLLUTANTS %K POP %X

Conclusions of the presentation given at the 11th International Symposium on Biological Monitoring in Occupational and Environmental Health (ISBM-11)

%B 11th International Symposium on Biological Monitoring in Occupational and Environmental Health (ISBM-11) %8 2019 aug 1 %G eng %0 Journal Article %J Food Analytical Methods %D 2019 %T Modular Method for the Determination of Polycyclic Aromatic Hydrocarbons in Spices and Dried Herbs by Gas Chromatography–Tandem Mass Spectrometry %A Philippe Szternfeld %A Jessica Marchi %A Svetlana V. Malysheva %A Laure Joly %K Dried herbs %K gas chromatography %K Mass Spectrometry %K PAHs %K Spices %X

This paper describes a method for quantification of the four regulated polycyclic aromatic hydrocarbons (PAHs),(benzo[a]anthracene [BaA], chrysene [CHR], benzo[b]fluoranthene [BbF] and benzo[a]pyrene [BaP]), in the wide matrix groupof spices and dried herbs by gas chromatography–tandem mass spectrometry (GC–MS/MS). The design of this method wasdrawn up using basic material and equipment available in most laboratories and a modular clean-up fitting for each category ofthis very diverse matrix group. The clean-up strategy consists of dividing this matrix group into three subclasses: regular spices,highly pigmented matrices and complex mix of spices/fatty spices. Depending on the subclass, SPE sorbent is adapted to removemaximum of co-extracts and to obtain clean samples. This method has a limit of quantification of 0.5 μgkg−1for each PAH andthe validation criteria fully satisfied the Commission Regulation (EU) No. 836/2011 (< 0.9 μgkg−1). The quantification per-formed by isotopic dilution allowed the complete correction of matrix effect and led to very good validation data with a meanrecovery close to 100% and a within-laboratory reproducibility below 10% (≤ 22% in Regulation (EU) No. 836/2011) for eachPAH and for each matrix group at all concentration levels tested. Furthermore, the method’s performance characteristics havebeen successfully assessed using a representative certified reference material for each subclass and at a level close to the MRL:10 μgkg−1for BaP and 50 μgkg−1for the sum of the 4 PAHs

%B Food Analytical Methods %V 12 %8 2019 july 16 %G eng %N 10 %R 10.1007/s12161-019-01579-4 %0 Journal Article %J Food Additives & Contaminants: Part B %D 2019 %T Pesticide residues in Tunisian table grapes and associated risk for consumer’s health %A A. Bouagga %A H. Chaabane %A K. Toumi %A A. Mougou Hamdane %A B. Nasraoui %A Laure Joly %K Fruit %K grapes %K Pesticide residues %X

Sixty-four table grape samples from different regions of Tunisia were collected during three consecutive years (2015–2017). The presence of 96 pesticides, including dithiocarbamates, was assessed. Pesticides identification and quantification were performed by liquid or gas chromatography, coupled to tandem mass spectrometry. All samples contained multiple residues (4 to 24 residues), with an average of 11.6 residues per sample. Individual concentrations of pesticides in grapes ranged from 0.01 to 5.86 mg kg−1. For at least one chemical compound, exceedances of the European Maximum Residue Limits were found in 94% of the samples. To assess the potential risk of pesticides through consumption of grapes, the acute exposure was estimated by the determination of predicted short term intake which is expressed as a percentage of Acute Reference Dose (ARfD), for non-compliances of pesticides. The exceedance of ARfD was associated with carbofuran, carbendazim, chlorpyrifos, deltamethrin, dimethoate and omethoate. Consequently, these pesticides could present a risk for consumer’s health.

%B Food Additives & Contaminants: Part B %V 12 %8 2019 feb 14 %G eng %N 2 %R 10.1080/19393210.2019.1571532 %0 Generic %D 2019 %T PFAS analysis in wheat flour %A Laure Joly %B Workshop EURL- Halogenated POP %8 2019 June 18 %G eng %0 Report %D 2019 %T SPECENZYM : A project to study the purity of food enzymes %A Marie Deckers %A Kevin Vanneste %A Sarah Denayer %A Sigrid C.J. De Keersmaecker %A M Heyndrickx %A M De Loose %A G Berben %A F Debode %A N. Papazova %A P Fox %A Laure Joly %A Ann Ruttens %A Karlien Cheyns %A Bart Huybrechts %A Emmanuel Tangni %A Didier Breyer %A D Deforce %A Marie-Alice Fraiture %A Nancy Roosens %8 2019 %G eng %0 Generic %D 2018 %T How to deal with spices & dried herbs diversity during PAH analysis %A Philippe Szternfeld %E Jessica Marchi %E Julie Broos %E Laure Joly %Y Suchsia Chao %K Dried herbs %K GC-MS/MS %K PAHs %K Polycyclic Aromatic Hydrocarbons %K Spices %B EURL-PC workshop 2018 %C Denmark %G eng %N DTU %0 Generic %D 2018 %T Levels of organochlorinated pesticide residues and other persistent organic pollutants in breast milk: the Belgian results from the 6th WHO-coordinated survey %A Ilse Van Overmeire %A Laure Joly %A Malarvannan,G. %A Poma,G. %A Covaci,A. %A A. Colles %A Koppen, G. %A E. Den Hond %A E. Van de Mieroop %A M.C. De Wolf %A F. Charlet %A Svetlana V. Malysheva %A Vanhouche,M. %A A. Dussart %A Joris Van Loco %A An Van Nieuwenhuyse %A Mirjana Andjelkovic %K breast milk %K organochlorinated pesticide residues %K PERSISTENT ORGANIC POLLUTANTS %X

Conclusions of the presentation given at the International symposium on halogenated Persistent Organic Pollutants (POPs) DIOXIN 2018

%B International symposium on halogenated Persistent Organic Pollutants (POPs) DIOXIN 2018 %8 2018 %G eng %0 Journal Article %J Environ Sci Technol %D 2018 %T Silicone Wristband Passive Samplers Yield Highly Individualized Pesticide Residue Exposure Profiles. %A Raf Aerts %A Laure Joly %A Philippe Szternfeld %A Khariklia Tsilikas %A Koen De Cremer %A Philippe Castelain %A Jean-Marie Aerts %A Jos Van Orshoven %A Ben Somers %A Marijke Hendrickx %A Mirjana Andjelkovic %A An Van Nieuwenhuyse %K Dietary exposure %K environmental exposure %K LC-MS/MS %K passive sampler %K Pesticide residues %K wristband sampler %X

Monitoring human exposure to pesticides and pesticide residues (PRs) remains crucial for informing public health policies, despite strict regulation of plant protection product and biocide use. We used 72 low-cost silicone wristbands as noninvasive passive samplers to assess cumulative 5-day exposure of 30 individuals to polar PRs. Ethyl acetate extraction and LC-MS/MS analysis were used for the identification of PRs. Thirty-one PRs were detected of which 15 PRs (48%) were detected only in worn wristbands, not in environmental controls. The PRs included 16 fungicides (52%), 8 insecticides (26%), 2 herbicides (6%), 3 pesticide derivatives (10%), 1 insect repellent (3%), and 1 pesticide synergist (3%). Five detected pesticides were not approved for plant protection use in the EU. Smoking and dietary habits that favor vegetable consumption were associated with higher numbers and higher cumulative concentrations of PRs in wristbands. Wristbands featured unique PR combinations. Our results suggest both environment and diet contributed to PR exposure in our study group. Silicone wristbands could serve as sensitive passive samplers to screen population-wide cumulative dietary and environmental exposure to authorized, unauthorized and banned pesticides.

%B Environ Sci Technol %V 52 %8 2018 Jan 02 %G eng %N 1 %R 10.1021/acs.est.7b05039 %0 Generic %D 2017 %T Dermal exposure of Belgian florists to insecticide residues %A Toumi,K. %A Laure Joly %A Christiane Vleminckx %A Schiffers,B. %K an %K AS %K at %K Belgium %K biological sciences %K chromatography %K Combination %K effect %K exposure %K florist %K GC %K Hand %K health %K Lead %K LEVEL %K levels %K measure %K method %K national %K ON %K Order %K pesticide %K Pesticide residues %K Residue %K result %K results %K risk %K SAFETY %K Sample %K Samples %K Science %K situation %K STANDARD %K standards %K study %K time %K values %K WHO %K work %X

In order to assess the potential dermal exposure (PDE) and evaluate the risk for Belgian florists exposed to insecticides residues (carbamates, neonicotonoids, organochlorines, organophosphates, pyrethroids, etc.) during handling of cut flowers and preparing bouquets, a study was carried out with a group of florists. On one hand, 90 bouquets of the most commonly sold cut flowers in Belgium (roses, gerberas and chrysanthemums) were sampled and analysed to determine the residual pesticide levels on flowers. On other hand, cotton gloves distributed to 20 florists (two pairs to each florist) were worn during two consecutive half days during normal professional tasks (from min 2 hours to max 3 hours/day) to measure the dislodgeable pesticide residues transferred from flowers to hands. The residual pesticide deposits on flowers and gloves samples were analyzed with a combination of GC and LC chromatography and a multi-residue (QuEChERS) method. The PDE values were calculated in accordance with the EFSA Guidance Document 2014. The results show that 53 insecticides were detected on flowers and 55 insecticides on cotton gloves. An average of 0.6 mg/kg insecticide residues per flower sample were measured. Acephate had the highest mean and maximum concentration (4.8 and 21.9 mg/kg, respectively ) measured on cut flowers. At the PDE 90th Percentile, 15 of 55 active substances exceed the AOEL indicating many at risk situations for florists. Clofentezine had the most critical PDE P90 value which was 0.3 mg/kg bw per day (30 times higher than the value of AOEL). As a consequence, this study leads to conclude that Belgian florists, who worked for several years and handled a large number of flowers contaminated by high concentrations of pesticide residues, are exposed daily with a potential effect on their health. So, this work suggests that safety standards should be set for residue levels on cut flowers.

%B NATIONAL SYMPOSIUM FOR APPLIED BIOLOGICAL SCIENCES 2017 %I NA %C NA %8 7/2/2017 %G eng %N KU Leuven %1 2674 %2 07/02/2017 %0 Generic %D 2017 %T Développement et validation de méthode d'analyse : exemple de l'analyse des pesticides dans l'urine %A Laure Joly %B Cours du Master 2 « analyse des contaminants chimiques » de L’Ulg %G eng %0 Generic %D 2017 %T Évaluation du risque d’exposition des fleuristes belges aux résidus de pesticides %A Toumi,K. %A Laure Joly %A Christiane Vleminckx %A Schiffers,B. %B SYMPIP 2017 Premier symposium maghrébin sur la protection intégrée des plantes %G eng %0 Generic %D 2017 %T Évaluation du risque d’exposition des travailleurs horticoles aux résidus de pesticides en Tunisie. %A Toumi,K. %A Laure Joly %A Christiane Vleminckx %A Schiffers,B. %B SYMPIP 2017 Premier symposium maghrébin sur la protection intégrée des plantes %G eng %0 Generic %D 2017 %T Potential demal exposure of florists to fungicide residues on flowers and risk assessment. %A Toumi,K. %A Laure Joly %A Christiane Vleminckx %A Schiffers,B. %B 69th International Symposium on Crop Protection %G eng %0 Journal Article %J Comm Appl Biol Sci %D 2017 %T Potential dermal exposure of florists to fungicide residues on flowers and risk assessment %A K. Toumi %A Laure Joly %A Christiane Vleminckx %A B. Schiffers %K cut flowers %K dermal exposure %K florists %K Risk Assessment %B Comm Appl Biol Sci %V 82 %G eng %& 11 %0 Generic %D 2017 %T Risk assessment of florist exposure to insecticide residus during normal professional tasks %A Toumi,K. %A Laure Joly %A Christiane Vleminckx %A Schiffers,B. %B SETAC %G eng %0 Journal Article %J Int J Environ Res Public Health %D 2017 %T Risk Assessment of Florists Exposed to Pesticide Residues through Handling of Flowers and Preparing Bouquets. %A Toumi, Khaoula %A Laure Joly %A Christiane Vleminckx %A Schiffers, Bruno %K Adult %K Belgium %K Chromatography, Liquid %K Environmental Monitoring %K Flowers %K Gas Chromatography-Mass Spectrometry %K Humans %K Occupational Exposure %K Pesticide residues %K Risk Assessment %K Tandem Mass Spectrometry %X

Flowers are frequently treated with pesticides and, as a result, florists handling daily a large number of flowers can be exposed to pesticide residues. A study was conducted among twenty volunteer florists located in Namur Province and in the Brussels Capital Region of Belgium in order to assess their potential dermal exposure to dislodgeable pesticide residues transferred from flowers to hands. Two pairs of cotton gloves were worn during two consecutive half days while handling flowers and preparing bouquets (from min 2 h to max 3 h/day). The residual pesticide deposits on the glove samples were extracted with a multi-residue Quick Easy Cheap Effective Rugged Safe (QuEChERS) method and analyzed by a combination of gas and liquid chromatography tandem mass spectrometry (GC-MS/MS and LC-MS/MS) by an accredited laboratory. A total of 111 active substances (mainly insecticides and fungicides) were detected, with an average of 37 active substances per sample and a total concentration per glove sample of 22.22 mg/kg. Several predictive levels of contamination were considered to assess the risk. The potential dermal exposures (PDE) of florists were estimated at the average, for different percentiles, and at the maximum concentration of residues in samples. At the PDE P90 and at the PDE (or worst case) values, three and five active substances respectively exceed the Acceptable Operator Exposure Level (AOEL), indicating risk situations. For the systemic exposure (SE), one active substance (clofentezine) exceeds the AOEL at the P90 predictive level. In the worst case, SE (at the maximum concentrations), four active substances (clofentezine, famoxadone, methiocarb, and pyridaben) exceed their respective AOEL values. Among the 14 most frequently detected active substances, two have SE values exceeding the AOEL. Exposure could be particularly critical for clofentezine with an SE value four times higher than the AOEL (393%). The exposure of florists appeared to be an example of a unique professional situation in which workers are exposed regularly to both a very high number of toxic chemicals and rather high concentration levels. Therefore the priority should be to raise the level of awareness among the florists who must change their habits and practices if they want to minimize their exposure.

%B Int J Environ Res Public Health %V 14 %8 2017 May 13 %G eng %N 5 %1 https://www.ncbi.nlm.nih.gov/pubmed/28505067?dopt=Abstract %R 10.3390/ijerph14050526 %0 Generic %D 2017 %T Risk assessment of florists’ Exposure to insecticide residues during normal professional tasks %A Toumi,K. %A Laure Joly %A Christiane Vleminckx %A Schiffers,B. %B SETAC 2017 Europe 27th Annual Meeting %G eng %0 Generic %D 2016 %T Determination of pesticide residues in drinking water by GC-MSMS and UPLC-MSMS %A Laure Joly %A Vanhouche,M. %A Deridder,M. %K European %K pesticide %K Pesticide residues %K Residue %K WATER %B 11th European Pesticide Residue Workshop %I NA %C NA %8 24/5/2016 %G eng %N EPRW %1 2512 %2 23-27/05/2016 %0 Generic %D 2016 %T Diquat and Paraquat analysis by UPLC-MSMS %A Laure Joly %E Philippe Szternfeld %K analysi %K analysis %K Laboratories %K liquid chromatography %K Mass Spectrometry %K Pesticides %B Workshop of the national laboratory of reference %I NA %C NA %8 8/12/2016 %G eng %1 2629 %2 08/12/2016 %0 Government Document %D 2016 %T La spectrométrie de mobilité ionique (IMS): un soutien aux analyses de pesticides par screening %A Laure Joly %A Séverine Goscinny %A Hanot,V. %A Philippe Szternfeld %A De Pauw,E. %A Eppe,G. %K Ion Mobility %K PAR %K pesticide %K Pesticides %K SCREENING %X

Cet article est un aperçu de l'usage qui peut être fait de la mobilité pour l'analyse de pesticide par screening.

%B LABINFO FAVV %I AFSCA %C Brussels, Belgium %V 15 %P 3 %8 1/08/2016 %G eng %& 16 %0 Journal Article %J Food Analytical Methods %D 2016 %T A Robust Transferable Method for the Determination of Glyphosate Residue in Liver After Derivatization by Ultra-high Pressure Liquid Chromatography–Tandem Mass Spectrometry %A Philippe Szternfeld %A Svetlana V. Malysheva %A Hanot, Vincent %A Laure Joly %K derivatization %K glyphosate %K liquid chromatography %K Liver %K Mass Spectrometry %K Solid phase extraction %B Food Analytical Methods %V 96013131292127251218833L 235L 961191218 %8 Jan-05-2016 %G eng %N 5 %R 10.1007/s12161-015-0293-5 %0 Generic %D 2016 %T Standard management : from the powder to the mix %A Laure Joly %K method %K methods %K pesticide %K Pesticides %K Residue %K Single Residue Methods %K STANDARD %B Workshop EURL Pesticides Single Residue Methods %I NA %C NA %8 19/10/2016 %G eng %N EURL Pesticides Single Residue Methods %1 2628 %2 17-19/10/2016 %0 Report %D 2016 %T Zesde WHO-gecoördineerd onderzoek naar persistente organische polluenten (POP's) in moedermelk: Belgische resultaten 2014 %A Ilse Van Overmeire %A Colles,A. %A Raf Aerts %A Janssens,B. %A Covaci,A. %A Mirjana Andjelkovic %A Laure Joly %A Poma,G. %A Malarvannan,G. %A De Smedt,T. %A Koppen,G. %A Joris Van Loco %A An Van Nieuwenhuyse %K Belgische %K moedermelk %K POP %K WHO %X

In 2014 werd gestart met de vijfde WHO-gecoördineerde studie over de aanwezigheid van POPs in moedermelk begonnen. De verzamelde stalen werden in het huidig kader naar WIVISP overgebracht. Binnen gegeven tijdskader van zes maanden werden 206 melkstalen geanalyseerd. Deze werden na een initiële voorbereiding in het WIV-ISP (coördinator van de studie) en aanmaak van de mengstalen per provincie (en een geweest) verder geanalyseerd in het WIV-ISP, UA en EUROFINS. De mengstalen waren gemaakt door een bepaalde hoeveelheid van elk individuel staal in elk provincie samen te voegen.Sommige van de gevraagde en de gemeten POPs waren op verschillende niveaus teruggevonden. In algemeen werden er p,p-DDE (8-256ppb), HCB (2-17ppb) en BDE-153 (0-2ppb) in bijna elk individueel staal teruggevonden. Behalve alpha-HBCD (38-153ng/g) was geen andere gevraagde POP in melk mengstalen terug gevonden. Aan de andere kanten werden er chlordane-cis, chlordane-trans, nonachlore-trans, HCH-a, o,p-DDE, o,p-DDT en BDE 183 in geen enkele individuele melkstaal gedetecteerd. POPszoals hexachloorbutadieen, heptachloor, chloordecone, dieldrin, hexabromocyclododecanes (HBCDs) die enkel in de gemengde stalen waren geanalyseerd werden niet terug gevonden.

%B WHO-gecoördineerd onderzoek naar persistente organische polluenten %I WIV-ISP en VITO %C Brussel/Mol %V lot 1 %P 22 %8 2016 %G eng %U NA %M NA %1 2641 %0 Journal Article %J Food analytical methods %D 2015 %T Rapid Determination of Ethephon in Grapes by Hydrophilic Interaction Chromatography Tandem Mass Spectrometry %A V. Hanot %A Laure Joly %A A. Bonnechère %A Joris Van Loco %K an %K analysi %K analysis %K AS %K at %K chromatography %K Clean up %K conditions %K CONSUMPTION %K criteria %K Efficiency %K environmental %K Ethephon %K gas chromatography %K Grape %K HILIC %K interaction %K IS %K LC-MS/MS %K liquid chromatography %K Mass %K Mass Spectrometry %K method %K methodology %K Mode %K ON %K Paper %K performance %K Quantification %K Reduction %K relative %K Reproducibility %K result %K results %K Sample %K Samples %K separation %K STANDARD %K surrogate %K Tandem Mass Spectrometry %K time %X Ethephon analysis usually requires indirect and laborious method including a derivatization step before gas chromatography tandem mass spectrometry (GC-MS/MS) determination. In this paper, the described method is quick and based on simple procedure without any clean-up. After addition of ethephon D4 as surrogate, a methanolic extraction was performed. The determination is done by high performance liquid chromatography coupled to a tandem mass spectrometer (LC-MS/MS) in electrospray negative mode. The chromatographic separation was achieved on a hydrophilic interaction liquid chromatography (HILIC) column. This methodology significantly reduces the time of analysis to around 10 min for sample extraction and 10 min for determination. The analytical performance was evaluated with grape samples spiked at the limit of quantification, 50 µg kg %B Food analytical methods %V 8 %P 524 - 530 %8 0/0/2015 %@ 1936-9751 %G eng %1 2255 %& 524 %R http://dx.doi.org/10.1007/s12161-014-9921-8 %0 Journal Article %J J Chromatogr A %D 2015 %T Travelling-wave ion mobility time-of-flight mass spectrometry as an alternative strategy for screening of multi-class pesticides in fruits and vegetables. %A Séverine Goscinny %A Laure Joly %A De Pauw, Edwin %A Hanot, Vincent %A Eppe, Gauthier %K Fruit %K Mass Spectrometry %K Pesticides %K Vegetables %X

This paper reports a novel approach to screening multi-class pesticides by ion mobility time-of-flight mass spectrometry detection. Nitrogen was selected as mobility gas. After optimization of the different ion mobility parameters, determination of matrix effect on the drift times was conducted using different matrix extracts. The results showed that drift time values are not influenced by the matrix and also are independent of the concentration within the working range for 100 pesticides tested, making drift time a powerful additional identification tool. Based on statistics, 2% variation criteria provides a good fit for all the pesticides targeted, and could be considered as a maximum acceptable criteria associated with the drift time parameter for identification purpose. This 2% value is in agreement with already reported criteria, for instance, for GC or LC retention time in European documents. Finally, the well-known feature of mobility to separate complex mixtures was also tested to obtain purified extracted mass spectra of pesticides present in fruit extract.

%B J Chromatogr A %V 1405 %P 85-93 %8 2015 Jul 31 %G eng %1 http://www.ncbi.nlm.nih.gov/pubmed/26100574?dopt=Abstract %R 10.1016/j.chroma.2015.05.057 %0 Generic %D 2014 %T Determination of 11 pyrethroids in food of animal origin by UHPLC-MSMS %A Laure Joly %A Vanhouche,M. %A V. Hanot %K Animal %K animal origin %K European %K food %K food of animal origin %K liquid chromatography %K Mass Spectrometry %K ORIGIN %K pesticide %K pyrethroids %K Residue %K Workshop %B 10th European Pesticide Residue Workshop %I NA %C NA %8 1/7/2014 %G eng %N EPRW %1 2256 %2 30/06/2014 - 03/07/2014 %0 Generic %D 2014 %T Determination of 16 perfluorinated compounds in milk and breast milk by UPLC - MS/MS %A Laure Joly %A Marchi,J. %A Barro,S. %A V. Hanot %K breast %K Dioxin %K International %K milk %K MS/MS %K ON %K organic %K perfluorinated compounds %K symposium %K UPLC %B 34th International Symposium on Halogenated Persistent Organic Polluants %I NA %C NA %8 2/9/2014 %G eng %N DIOXIN %1 2263 %2 31/08/2014 - 05/09/2014 %0 Generic %D 2014 %T Glyphosate determination in cereals and liver after derivatization %A Laure Joly %A Philippe Szternfeld %A Séverine Goscinny %A V. Hanot %A Unterluggauer,H. %A Aldrian,J. %A Masselter,S. %K Cereals %K chromatography %K derivatization %K glyphosate %K Liver %K Mass Spectrometry %K pesticide %K Pesticides %K Workshop %B EURL AO/SRM Pesticides Joint Workshop %I NA %C NA %8 14/10/2014 %G eng %N EURL-AO, EURL-SRM %1 2290 %2 13-15/10/2014 %0 Government Document %D 2014 %T Screening for residus of pesticides %A Laure Joly %A Philippe Szternfeld %A V. Hanot %K Analyses %K application %K applications %K ce %K challenge %K de %K denrées alimentaires %K EN %K ET %K LE %K PAR %K pesticide %K Pesticides %K qualité %K risques %K SCREENING %K Type %K VALIDATION %X A %B LABINFO FAVV %V 12 %P 20 - 22 %8 30/7/2014 %G eng %1 2258 %& 20 %0 Generic %D 2013 %T Additional separation by ion mobility-cases in which such approach can be helpful in pesticide residue analysis %A V. Hanot %A Séverine Goscinny %A Laure Joly %A E. De Pauw %A G. Eppe %K additional %K analysis %K approach %K approaches %K conference %K food %K International %K Ion %K Ion Mobility %K Mass Spectrometry %K pesticide %K Pesticide residues %K Residue %K residue analysis %K SCREENING %K separation %B 7th international Fresenius Conference. Pesticide Residues in Food %I NA %C NA %8 15/5/2013 %G eng %N Fresenius Akademie %1 2129 %2 15-28/06/2012 %0 Government Document %D 2013 %T Comment estimer l'incertitude de mesure lors de la quantification de pesticides ? %A Laure Joly %A V. Hanot %K Comment %K de %K expression %K ISO 17025 %K LE %K measurement %K Pa %K PAR %K PAS %K pesticide %K Pesticides %K Quantification %K uncertainty %X Pour evaluer l'incertitude de mesure sur la concentration d'un pesticide, plusieurs approches peuvent etre envisagees pour autant qu'elles cadrent avec le GUM (Guide to the expression of uncertainty in measurement) et la norme ISO 17025. L'EURL Pesticides "Fruits and Vegetables" a estime l'incertitude associee a differents pesticides a une concentration de 10 ppb par le biais de différentes methodes. L'approche "bottom up" n'a pas ete utilisee en raison de sa complexite, l'approche "top-down" evalue l'incertitude a 54 %, la methode SANCO donne une incertitude de 50 %, enfin l'equation de Thompson estime l'incertitude a 44 %. %B LabInfo %V 10, juillet 2013 %8 12/7/2013 %G eng %1 2138 %0 Generic %D 2013 %T Interest of Ion Mobility - Mass Spectrometry analysis for the screening of pesticide residues in food %A Laure Joly %A Séverine Goscinny %A Touilloux,R. %A V. Hanot %A E. De Pauw %A G. Eppe %E AOAC Europe (Association of Analytical Communities Europe) %E Association des responsables de la qualité et fiabilité analytique (ASFILAB) %K acquisition %K additional %K Advantages %K an %K analysi %K analysis %K AS %K at %K challenge %K chromatography %K Class %K conditions %K Control %K Design %K discrimination %K DRUG %K Field %K food %K Hand %K identification %K identify %K im %K INFORMATION %K Instrument %K investigation %K Ion %K Ion Mobility %K IS %K Isomers %K LEVEL %K levels %K liquid chromatography %K List %K Mass %K Mass Spectrometry %K matrix %K method %K methods %K mobility %K Mode %K Monitoring %K national %K noise %K ON %K parameters %K pesticide %K Pesticide residues %K Pesticides %K PRESENTATION %K Pressure %K PROCESSES %K programme %K Ratio %K Residue %K residue analysis %K SCREENING %K Solvents %K Strategies %K Strategy %K Target %K Technique %K time %K time of flight %K Travel %K trend %K trends %K Type %K UK %K WATER %K waters %K Yield %8 2013/04/18/ %G eng %1 2126 %0 Generic %D 2013 %T Ion mobility - an additional separation in mass spectrometry pesticide screening analysis residue analysis %A V. Hanot %A Séverine Goscinny %A Laure Joly %A E. De Pauw %A G. Eppe %K additional %K an %K analysi %K analysis %K Ion %K Ion Mobility %K Mass %K Mass Spectrometry %K mobility %K ood %K pesticide %K Pesticide residues %K Residue %K residue analysis %K SCREENING %K separation %B 4th Latin America Pesticide Residue Workshop %I NA %C NA %8 28/5/2013 %G eng %N LAPRW %1 2142 %2 26-29/05/2013 %0 Generic %D 2013 %T A novel approach using IMS for screening pesticide residues in food %A Séverine Goscinny %A V. Hanot %A Laure Joly %A G. Eppe %A M. McCullagh %K approach %K approaches %K food %K im %K Ion mobility,screening,pesticide residue analysis %K pesticide %K Pesticide residues %K Residue %K SCREENING %K WATER %K waters %B ASMS User meeting Waters Plenary scession %I NA %C NA %8 0/0/2013 %G eng %N ASMS Conference %1 2209 %2 8 juin 2013 %0 Generic %D 2013 %T PFAS analysis in fish by UPLC-MS/MS %A Laure Joly %E V. Hanot %E Philippe Szternfeld %K analysi %K analysis %K Mass Spectrometry %K PCB %K Pcbs %K PFAS %K Quantification %K UPLC %B Workshop NRL-OfLs PCBs and Dioxines %I NA %C NA %8 9/12/2013 %G eng %1 2159 %2 09/12/13 %0 Generic %D 2013 %T PFAS determination in fish by UPLC-MS/MS %A Laure Joly %A Veyrand,B. %A Le Bizec,B. %A Joris Van Loco %A V. Hanot %E Trier,X. %E Lundb‘k Barnkob,L. %E Cousins,I. %E Bossi,R. %E Knudsen,L.E. %E Nielsen,O.J. %E Jensen,A.A. %E Granby,K. %K 2012 %K acid %K Acids %K an %K analysi %K analysis %K application %K applications %K AS %K Belgium %K Clean up %K composition %K Development %K effective %K European %K European Union %K exposure %K Fishes %K food %K Human %K human exposure %K Interference %K International %K IS %K Laboratories %K Mass Spectrometry %K matrix %K method %K methods %K Monitoring %K national %K ON %K PERSISTENT ORGANIC POLLUTANTS %K PFAS %K Quantification %K recommendation %K report %K Sample %K Selection %K standards %K State %K Synthetic %K System %K UPLC %K VALIDATION %K WATER %K waters %X The chemical properties of per and polyfluorinated compounds (PFAS) make these synthetic substances widely used in numerous industrial and commercial applications. Due to the large human exposure, the European Union encourages member states to develop methods for the monitoring of PFAS in food (2010/161/EU). A method for PFAS analysis has been developed to support the Belgium federal food agency in the national reference laboratory (NRL) framework %B 5 th International Workshop on Per- and Polyfluorinated Alkyl Substances - PFAS %8 28/10/2013 %G eng %N Trier,X., Lundbæk Barnkob,L., Cousins,I., Bossi,R., Knudsen,L.E., Nielsen,O.J., Jensen,A.A., Granby,K. %1 35174 %2 27-29 october 2013 %0 Generic %D 2013 %T Pyrethroids analysis by UPLC-MS/MS %A Laure Joly %A Vanhouche,M. %E V. Hanot %E Philippe Szternfeld %K analysi %K analysis %K Mass Spectrometry %K pesticide %K Pesticide residues %K Pesticides %K UPLC %B Workshop NRL-OfLs Pesticides %I NA %C NA %8 29/11/2013 %G eng %1 2160 %2 29/11/2013 %0 Government Document %D 2013 %T Screening de résidus de pesticides par analyseur à temps de vol (ToF) : Mythe ou réalité? %A Laure Joly %A V. Hanot %K de %K Mass Spectrometry %K PAR %K pesticide %K Pesticides %K SCREENING %K time of flight %K Type %X L'interet du spectrométre de type "time of flight" pour l'analyse des pesticides %B LabInfo %V 9, janvier 2013 %8 1/1/2013 %G eng %1 2124 %0 Generic %D 2013 %T Time of flight mass analysers %A Séverine Goscinny %A Laure Joly %E WIV-ISP %K Mass %K Mass Spectrometry %K pesticide %K Pesticides %K time %K time of flight %B workshop NRL-OfLs Pesticides %8 11/5/2013 %G eng %N WIV-IS %1 2127 %2 11/05/2013 %0 Generic %D 2012 %T Flexible accreditation for pesticides: history and actual situation in Belgium %A Laure Joly %A V. Hanot %E Fernandez-Alba,A. %E Poulsen,M.E. %E Anastassiades,M. %K Accreditation %K Belgium %K feed %K food %K history %K pesticide %K Pesticides %K Residue %K situation %B Joint EURL FV / CF / SRM workshop for residues of pesticides in food and feed %8 13/11/2012 %G eng %N Fernandez-Alba,A., Poulsen,M.E., Anastassiades,M. %1 2078 %2 12-13 November 2012 %0 Generic %D 2012 %T Investigation of Ion Mobility coupled with mass spectrometry (IMMS) for the screening of pesticide residues in food %A Séverine Goscinny %A Laure Joly %A E. De Pauw %A V. Hanot %A G. Eppe %K food %K investigation %K Ion %K Mass %K Mass Spectrometry %K mobility %K n %K pesticide %K Pesticide residues %K Residue %K SCREENING %B KVCV %I NA %C NA %8 0/0/2012 %G eng %N KVCV %1 1967 %2 9/06/2011 %0 Generic %D 2012 %T Ion Mobility-mass spectrometry as a new approach for the screening of pesticde residues in food %A Séverine Goscinny %A Touilloux,R. %A Laure Joly %A E. De Pauw %A V. Hanot %A G. Eppe %K approach %K approaches %K AS %K Dioxin %K food %K Ion %K Ion Mobility %K Mass Spectrometry %K Pesticide residues %K Residue %K SCREENING %B Dioxin 2011 %I NA %C NA %8 0/0/2012 %G eng %N Dioxin 2011 %1 1968 %2 21-25/08/2011 %0 Generic %D 2012 %T Ion Mobility-Mass Spectrometry for the Screening of Pesticides in Food %A Séverine Goscinny %A Laure Joly %A E. De Pauw %A V. Hanot %A G. Eppe %K Florida %K food %K Ion %K pesticide %K Pesticides %K Residue %K SCREENING %B Florida Pesticide Residue Workshop %I NA %C NA %8 0/0/2012 %G eng %N Florida Pesticide Residue Workshop %1 1974 %2 15-18/07/2012 %0 Generic %D 2012 %T Ion Mobility-Time-of-Flight Mass Spectrometry as a new tool for the screening of pesticide residues in food %A Séverine Goscinny %A Laure Joly %A E. De Pauw %A V. Hanot %A G. Eppe %E 5th International Symposium on Recent Advances in Food Analysis %K analysis %K AS %K food %K Food Analysis %K International %K Ion %K Mass %K Mass Spectrometry %K ON %K pesticide %K Pesticide residues %K Residue %K SCREENING %K symposium %B 5th International Symposium on Recent Advances in Food Analysis %8 0/0/2012 %G eng %N 5th International Symposium on Recent Advances in Food Analysis %1 1970 %2 1-4-2011 %0 Generic %D 2012 %T National reference laboratory network: the Belgian case for pesticides %A V. Hanot %A Laure Joly %E Fernandez-Alba,A. %E Poulsen,M.E. %E Anastassiades,M. %K Belgian %K Case %K feed %K food %K Laboratories %K national %K Network %K pesticide %K Pesticides %K Residue %B Joint EURL FV / CF / SRM workshop for residues of pesticides in food and feed %8 13/11/2012 %G eng %N Fernandez-Alba,A., Poulsen,M.E., Anastassiades,M. %1 2080 %2 12-13 November 2012 %0 Generic %D 2012 %T Rapid analysis of ethephon in grapes using zwitterion hydrophilic interaction chromatography mass spectrometry %A Laure Joly %A A. Bonnechère %A Séverine Goscinny %A V. Hanot %E Alpendurada,M.F. %E Albanis,T. %E Albaiges,J. %K analysis %K chemistry %K chromatography %K conference %K environment %K European %K interaction %K Mass %K Mass Spectrometry %K ON %K organic %K pesticide %K Pesticides %K symposium %B 7th european conference on pesticides and related organic micropolluants in the environment / 13th symposium on chemistry and fate of modern pesticides %V Joint EURL FV / CF / SRM workshop for residues of pesticides in food and feed %8 8/10/2012 %G eng %N Alpendurada,M.F., Albanis,T., Albaiges,J. %1 2083 %2 7-10 october 2012 %0 Generic %D 2012 %T "SSS" Scan speed, Sensitivity and Smooth: how to manage? %A Laure Joly %K analysis %K BALANCE %K challenge %K chromatography %K IS %K liquid chromatography %K Mass %K Mass Spectrometry %K SENSITIVITY %K System %K triple quadripole %K Type %X

Liquid chromatography hyphened with a mass spectrometer is a well established powerful tool for trace analysis. Nonetheless, analysing more than 200 compounds in one run can push this type of system to its limit. This seminar will demonstrate how you can balance a perfect compromise between scan speed, high sensitivity and good chromatography processing. You are welcome to actively participate to this challenge.

%B Tuesday Seminar %I NA %C NA %8 0/0/2012 %G eng %N WIV-ISP %1 2125 %2 23/10/2012