• Assurance and improvement of the quality of residue analyses
• Recommendations on sampling and sample preparation in connection with residue analysis
• Collaboration in the development and validation of analytical methods
• Advice to colleagues on analytical and legal issues
• Collection of data to estimate the pesticide contamination of certain foods, responsible: LM-Chem. Andreas Hentschel, Berlin
• Statements on national and European legislative initiatives
• Conducting quality assurance ring tests and comparative laboratory tests with analytically interesting active substance/matrix combinations
• Organisation and implementation of training events

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On 22 April 1968, the inaugural meeting of the "Pesticides" working group of the then Division of "Food Chemistry and Forensic Chemistry" was held in Frankfurt am Main under the chairmanship of Prof. Dr. Dr. Diemair. At that time, the working group consisted of three representatives each from universities, industry and food testing institutes, two freelance chemists and one employee of the then Federal Health Office. The first tasks of the newly founded WG included the drafting of implementing provisions for the National Maximum Quantity Ordinance for Pesticide Residues, which came into force in 1968, and the development of a recommendation on pesticide analysis with information on the equipment of a pesticide laboratory, sampling and coordination with other offices.

In the meantime, the Working Group "Pesticides" has developed into the largest and oldest WG of the Society of Food Chemistry with around 20 active and almost 50 corresponding members. The meetings usually take place twice a year. The 100th meeting will therefore take place this year on 11 and 12 November in Kassel. To mark this anniversary, the members of the Working Group "Pesticides" have decided to organise this meeting as a celebratory meeting.

Active members, former active members and corresponding members are invited to the celebratory meeting. The programme of the festive meeting includes various keynote speeches, which will reflect the different areas of work of the WG in addition to the historical development. In the evening, an exchange of information is planned in a convivial atmosphere with all participants.