Pesticides analysis in food

In the WESSLING laboratory we perform analysis for the largest food producers, distributors and growers in order to detect pesticide residues in food, used as protection agents in plant crops.

Today's agriculture and plant protection products

Pesticide analysis in food

Conventional agricultural production today cannot do without the use of plant protection products. To ensure the safety and profitability of many crops, farmers must use various types of chemicals to protect plants from pests, fungal diseases and weeds. Despite following the manufacturer's recommendations when using a given product and applying appropriate waiting times, residues of the substances used may be found in food at the stage of their sale to the final consumer. Pursuant to the provisions of EU law, residues of plant protection products may be present in food, but at the level not exceeding the standards (MRL- maximum residue level) specified for each substance in various food products.

Methods for determining pesticide residues in food

In WESSLING laboratories, we perform the determination of pesticide residues in various types of food. With modern equipment, our experts from the laboratory in the Krakow branch perform tests in accordance with the international standard PN-EN 15662: 2018-06 using chromatographic techniques combined with tandem-coupled mass spectrometry detection (GC-MS/MS and LC-MS/MS). Pesticide tests in this department are performed in matrices such as fresh and frozen fruit and vegetables and mushrooms, as well as derivative products (juices, purees).

Almost 600 substances determining by a multimethod

Currently, the laboratory in Krakow determines nearly 600 substances as part of a multi-method consisting of GC-MS/MS and LC-MS/MS techniques. Thanks to the aforementioned multi-method, most of the basic active substances, their derivatives and metabolites are determined - in such a way that the interpretation of the results obtained allows them to be related to the limits set by the regulation defining the maximum residue levels of plant protection products (EU Regulation No. 396/2005 with amendments). Some substance definitions set acceptable levels for the sum of a compound and its derivatives and/or metabolites. The vast majority of substances determined by our laboratory therefore allow for a reliable interpretation of the obtained results in accordance with the current legal requirements.


Specific substances, requiring separate analysis

Some of the compounds we determine require separate preparation before the actual analysis, therefore they must be tested separately, apart from the basic multimethod package. Specific substances tested by our laboratory in Krakow - requiring a separate method of analysis - include such determinations as: acid herbicides (2,4-D, chizalfop, dichlorprop, fluazifop, haloksyfop, MCPA, MCPB), dithianon, dithiocarbamates, fenbutatin oxide and quaternary salts ammonium (BAC/DDAC).

Our results are recognized all over the world

The laboratory in Kraków is accredited by the PCA for compliance with the PN-EC ISO 17025 standard, which guarantees our clients obtaining reliable results recognized all over the world. This eliminates technical barriers in foreign trade, facilitates finding new markets and gaining a competitive advantage. Thanks to our analysis, you can be sure that the food is safe and meets the current legal requirements.

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