23 research outputs found
Certification of the Mass Fraction of Polycyclic Aromatic Hydrocarbons (PAHs) in Toluene - Certified Reference Materials ERM®-AC213
This report describes the preparation of a calibration solution of polycyclic aromatic hydrocarbons (PAHs) (ERM-AC213) containing benzo[a]pyrene, benz[a]anthracene, cyclopenta[cd]pyrene, chrysene, benzo[b]fluoranthene, benzo[j]fluoranthene, benzo[k]fluoranthene, benzo[ghi]perylene, dibenz[a,h]anthracene, dibenzo[a,l]pyrene, dibenzo[a,e]pyrene, dibenzo[a,i]pyrene, indeno[1,2,3-cd]pyrene, 5-methylchrysene and benzo[c]fluorene and the certification of their content (mass fraction) in the solution.
The preparation of the calibrant, homogeneity and stability studies and confirmation measurements with a discussion of the results are described hereafter. Uncertainties were calculated in compliance with the Guide to the Expression of Uncertainty in Measurement (GUM) [1] and include uncertainties due to the processing, purity assessment and possible instability.JRC.DG.D.2-Reference material
Risk assessment of chlorinated paraffins in feed and food
The Panel wishes to thank the hearing expert: Kerstin Krätschmer and EFSA staff member: Kelly Niermans for the support provided to this scientific output. The CONTAM Panel acknowledges all European competent institutions and other stakeholders that provided occurrence data in food and human milk and data on the toxicity of CPs, and supported the data collection for the Comprehensive European Food Consumption Database.Peer reviewedPublisher PD
Update of the risk assessment of hexabromocyclododecanes (HBCDDs) in food
Panel members: Margherita Bignami, Laurent Bodin, James Kevin Chipman, Jesus del Mazo, BettinaGrasl-Kraupp, Christer Hogstrand, Laurentius (Ron) Hoogenboom, Jean-Charles Leblanc, Carlo StefanoNebbia, Elsa Nielsen, Evangelia Ntzani, Annette Petersen, Salomon Sand, Dieter Schrenk, TanjaSchwerdtle, Christiane Vleminckx and Heather Wallace Requestor: European Commission Question number: EFSA‐Q‐2018‐00433 Acknowledgements: The Panel wishes to thank the hearing experts: Cathy Fernandes and Henri Schroeder, and EFSA staff members: Kelly Niermans and Federico Cruciani, for the support provided to this scientific output. The Panel wishes to acknowledge all European competent institutions and Member State bodies that provided consumption and occurrence data for this scientific output. Data: All annexes on occurrence and exposure data, as well as the protocol used to produce this Scientific opinion, cross‐referenced in the text, are available on the EFSA Knowledge Junction at: https://doi.org/10.5281/zenodo.4475651Peer reviewedPublisher PD
Risk assessment of glycoalkaloids in feed and food, in particular in potatoes and potato-derived products
Acknowledgements: The Panel wishes to thank the following for the support provided to this scientific output: Kelly Niermans. The Panel wishes to acknowledge all European competent institutions, Member State bodies and other organisations that provided consumption and occurrence data for this scientific output.Peer reviewedPublisher PD
PAHs in baby food: assessment of three different processing techniques for the preparation of reference materials
Risks to human and animal health related to the presence of deoxynivalenol and its acetylated and modified forms in food and feed
Peer reviewedPublisher PD
Risk for animal and human health related to the presence of dioxins and dioxin-like PCBs in feed and food
EFSA wishes to thank the Working Group members: Manolis Kogevinas (until 14 September 2016), George Loizou (until 23 January 2017), and the hearing experts: Matteo Bonzini, Jane Burns, Claude Emond, Aleksander Giwercman, Russ Hauser, Lidia Mínguez‐Alarcón and Paolo Mocarelli, for the support provided to this scientific output. The CONTAM Panel acknowledges all European competent institutions and other stakeholders that provided occurrence data on PCDD/Fs and DL‐PCBs in food and feed, and supported the data collection for the Comprehensive European Food Consumption Database.Peer reviewedPublisher PD
Update of the risk assessment of hexabromocyclododecanes (HBCDDs) in food: Occurrence data in food submitted to EFSA and dietary exposure assessment for humans
Annex A – Protocol for the risk assessments for human health related to the presence of brominated flame retardants (BFRs) in food
The Annex is provided as a separate pdf file containing the risk assessment protocol selected by the CONTAM Panel to update the previous risk assessments of brominated flame retardants (BFRs) in food.
Annex B: Occurrence data on HBCDDs in food submitted to EFSA and dietary surveys per country and age group available in the EFSA Comprehensive Database, considered in the exposure assessment
Table B.1 Number of analytical results excluded from the initial dataset during data cleaning, and justification for exclusion
Table B.2 Occurrence values of HBCDDs calculated total (µg/kg) by food category in the final dataset
Table B.3 Food categories of FoodEx and mean LB and UB values as used for the exposure assessment
Table B.4 Dietary surveys and the number of subjects by country and population class, available for the chronic exposure assessment, in the EFSA Comprehensive European Food Consumption Database
Table B.5 Summary statistics on data reported for HBCDDs total, analysed with GC-MS, not considered for the exposure
Figure B.1 Frequency distribution of the occurrence values for the food categories of interest at the LB without zeros presented on a log 10 scale
Figure B.2 Frequency distribution of the occurrence values for the food categories of interest at the UB presented on a log 10 scale
HBCDDs_Raw_Occurrence_Data.CSV contains the raw occurrence dataset on Hexabromocyclododecanes (HBCDDs) contaminant as extracted from EFSA DWH in December 2019 on 2530 food samples presented in the opinion as described in its section 3.2.1. Occurrence data submitted to EFSA. The data is provided in .csv format. This dataset is compliant with EFSA SSD model and contains two additional columns documenting issues identified in the cleaning process (column: issue) and the action taken (column: outcome) to address the issue (e.g. delete record or update values in specific fields).
The link to the catalogues of controlled terminologies can be found under "Related identifiers”.
Annex D: Chronic dietary exposure to HBCDDs and the contribution of different food groups to the dietary exposure
Table D.1 Mean chronic dietary exposure (ng/kg b.w. per day) to HBCDDs for total population across European dietary surveys
Table D.2 95th percentile chronic exposures to HBCDDs (ng/kg b.w. per day) for total population for each dietary survey across age classes
Table D.3 Relative contribution (%) of food categories to the LB and UB estimates of dietary exposure to HBCDDs across different age classes, dietary surveys and countries
Table D.4 Relative contribution of food categories to the LB estimates of dietary exposure to HBCDDs and related figure
Table D.5 Relative contribution of food categories to the UB estimates of dietary exposure to HBCDDs and related figure
Annex E – Outcome of the Public consultation on the Update of the risk assessment of hexabromocyclododecanes (HBCDDs) in food
The Annex is provided as a separate pdf file contain the outcome of the public consultation of the
draft scientific Opinion, including the comments received and how they were taken into account when
finalising the scientific OpinionPeer reviewe
Contaminantes tóxicos en alimentos desarrollo de técnicas multidimensionales, evaluación de los niveles y estudio del enriquecimiento enantiomérico
Tesis doctoral inédita leída en la Universidad Autónoma de Madrid, Facultad de Ciencias, Departamento de Química Física Aplicada. Fecha de lectura: 26-05-200
Optimisation of the GC-MS Conditions for the Determination of the 15 EU Foodstuff Priority Polycyclic Aromatic Hydrocarbons
European legislation has recently established a list of 15 priority PAHs to be monitores in foodstuff. Thus, the accurate determination of these compounds has become a highly relevant issue. The fact that some of these EU PAHs differ from those typically analysed, the so-called EPA PAHs, requires the re-evaluation of the instrumental conditions, including the selection of the capillary column, for the proper determination of the new target compounds. In this study, the influence of the stationary phase and dimensions of the GC capillary column on the chromatographic resolution of the 15 EU PAHs has been investigated. Apolar (DB-5 type) and medium polar (DB-17 type) stationary phases with different lengths and film thickness have been evaluated for the separation of the target compounds, with special emphasis on those coelutions involving isomers such as the 3 benzofluoranthene isomers included in the EU PAHs. In addition, the influence of the injection technique and the column dimensions on the recovery of the high molecular mass PAHs has been studied. A programmable temperature vaporizing (PTV) injector has been used in three different splitless operational modes and the results were compared to those obtained using on-column injection. The best results were obtained when a medium polar column (DB-17 type) with athin film thickness was used and the PTV injector was operated in its programmable temperature mode. The experimental parameters involved in the injection step were optimised by using the so-called "design of experiments".JRC.D.2-Reference material