The working group was founded in 1985 and consists of active and corresponding members from authorities and official food monitoring organisations, independent private laboratories, the food industry and universities.
The active members meet twice a year in person or virtually for working group meetings. Active and corresponding members can view and download the minutes of the working group meetings on the internal working group pages (at www.gdch.de --> log in to MyGDCh with your membership number and password).
The main tasks of the working group include:
The results of the work are primarily used in official testing tasks, in self-monitoring systems in food production and in the work of expert laboratories.
Dr Christian Hinkel
Bavarian State Office for Health
and Food Safety (LGL)
Phone: 09131 68082191
Email: christian.hinkel@lgl.bayern.de
Dr Dierk Clos
Phone: 0261 9149-362
Email: dierk.clos@lua.rlp.de
Term of office: 2024 - 2026
In addition to testing physico-chemical measurement methods such as LC-MS, the working group has set itself the goal of following the new developments in rapid test systems.
After an extensive comparison of the commercially available ELISA test kits, the Premitest was compared as a rapid antibiotic test in organ material in several laboratories with the results of the three-plate inhibitor test and chemical analysis methods.
The aim of validating test methods is to ensure the scientifically substantiated and legally secure comparability of analysis results. Validation is a component of quality assurance systems in accordance with DIN EN ISO / IEC 17025.
The analysis results from different laboratories within the EU and beyond must be comparably accurate, correct and precise. For test methods validated before 10 June 2021 within the framework of official residue controls, Decision 2002/657/EC still applies in part until 10 June 2026 (literature 1). Since 10 June 2021, the requirements of Implementing Regulation (EU) 2021/808 must be observed for new validations or revalidations (literature 4).
A sub-working group of the working group has developed a procedure proposal for the practical implementation of validation in routine laboratories in accordance with the above-mentioned EU decision. This was published after discussion in the working group (literature 2). In addition, a comparative analysis of various validation procedures was carried out.
The results of these discussions have been incorporated into the validation procedure recommended by the BVL using the "InterVal" software from quo data GmbH.Links
BVL / BFR / EU
https://www.bfr.bund.de/de/lebensmittel-391.html
https://food.ec.europa.eu/safety/chemical-safety/residues-veterinary-medicinal-products_en
Literature
1) Commission Decision of 12 August 2002. August 2002 implementing Council Directive 96/23/EC concerning the performance of analytical methods and interpretation of results
(2002/657/EC)
2) Validation of methods for the testing of pharmacologically active substances in the routine laboratory
Food Chemistry 57, 99 -102 (2003)
3) Discussion on method validation of methods for testing for pharmacologically active substances
Food Chemistry 58, 56-57 (2004)
4) COMMISSION IMPLEMENTING REGULATION (EU) 2021/808 of 22 March 2021 on performance criteria for analytical methods
(2002/657/EC)
.
4) COMMISSION IMPLEMENTING REGULATION (EU) 2021/808 of 22 March 2021 on performance criteria for methods of analysis for residues of pharmacologically active substances in food-producing animals and on the interpretation of results and methods to be used for sampling and repealing Decisions 2002/657/EC and 98/179/EC
5) Targeted screening of veterinary medicinal products, Food Chemistry 75, 56 - 57 (2021)