Flexible scope for accredited analyses of pesticides in fresh produce and grain

After a positive assessment study by the Dutch Accreditation Council (RvA), the residue laboratory of Groen Agro Control has obtained a flexible scope for the analysis of residues of pesticides in food, animal feed, products derived of plants and water.

Starting from today, the following pesticide residues are also measured under accreditation:

Residue Screening LC-MSMS in Fresh Produce: Bensulfuron-methyl, Dimethirimol, Etoxazole, Fenbutatin Oxide, Buturon, Flupyridafurone, Isouron, Oxasulfuron, Quinoclamine, Terbuthylazine

Polar pesticides in Fresh produce and Grain: Ethephon, Fosetyl, Phosphorous acid, AMPA, Glyphosate, Glufosinate

The new analysis lists for fruit and vegetables and grain are available on our website, the newly accredited substances are also marked with a Q.

ARfD – calculation according to the EFSA PRIMo model version 3.1

Since the 12th of October 2020, Groen Agro Control calculates and reports the ARfD percentage (ARfD value) for the Netherlands with the EFSA PRIMo model 3.1. The Acute Reference Dose (ARfD) is an estimate of the amount of a pesticide in food that a person can ingest within 24 hours without significant health effects. The depletion of the ARfD value is always given as a percentage of the ARfD value.

Previously, the national models were used to calculate the ARfD percentage, in the Netherlands the NESTI model. Recently, the calculation method of the ARfD percentage has been harmonized within the European Union. The calculation model within the European Union is the EFSA PRIMo model (current version 3.1). For the Netherlands, RIVM has also published a list of associated processing factors that are included in the calculation. The calculation of the ARfD with the PRIMo model with processing factors is also used when testing against the requirements of Dutch retailers. For other countries within the EU, the PRIMo model is used without the processing factors.

If you have any questions about this change in the method for the ARfD calculation, please contact your account manager or our specialists from the Pesticide residue laboratory.


Groen Agro Control Perú SAC will attend the 2020 Expoalimentaria trade show

Groen Agro Control Perú SAC is participating in this new version of 2020 Expoalimentaria trade show: Virtual Expoalimentaria from September 30th to November 15th

Virtual Expoalimentaria is a commercial platform which has been created in order to display and promote important products within the food, beverage, machinery, services, containers and packaging sectors for the food industry. It will be used as meeting point for the key operators of distribution, retail, catering industry and specialized channel in the Peruvian and international market.

Be free to visit us and know more of our services: https://join.expoalimentariaperu.com/en or contact by email info@agrocontrol.pe for any request.

Groen Agro Control Peru obtained accreditation for the analysis of residues of crop protection products

Our colleagues in Lima have been working on the validation of the analysis methods for residues of pesticides. The Dutch Board of Accreditation (RvA) recently evaluated these efforts and awarded accreditation to our methods of analysis. Starting from the 7th of September the residue analyses on fruit and vegetables and grains that are carried out by our laboratory in Peru are performed under this accreditation.

If you wish to use the analyses of Groen Agro Control Peru, please contact us via info@agrocontrol.nl

MRL reduction to 0.01 mg/kg for Chlorpyrifos and Chlorpyrifos-methyl from the 13th of November 2020.

On July 23rd , the EU published a correction to regulation EC 2020/1085. This regulation stated that the MRLs for Chlorpyrifos and Chlorpyrifos-methyl will be reduced to 0,01 mg/kg starting from the 6th of August 2020. This date has now been postponed to the 13th of November 2020. This correction can be downloaded from:


The EU authorization for the use of the insecticide Chlorpyrifos has been withdrawn since 1 January 2020. Following this, the MRLs are now also reduced to 0.01 mg/kg.

This MRL reduction may have consequences for importers of many different products but especially for importers of bananas and citrus fruits. Both Chlorpyrifos and Chlorpyrifos-methyl are analysed in the Multi-Residue screening GC-MSMS & LC-MSMS.

If you would like to know what this MRL reduction means for your products, please contact us at info@agrocontrol.nl.

Changes in EU – legislation for residues of Chlorate and Perchlorate

The Analysis of Chlorate and Perchlorate

For both Chlorate and Perchlorate, changes in EU legislation have recently been published.

Maximum residue limits will apply for Chlorate from the 28th of June.

In Europe, the use of chlorate as a plant protection product has been banned for a number of years. In addition to this direct application as a plant protection product, chlorate can also occur in water as degradation products of disinfectants. If this water is used as irrigation during cultivation of crops, there is a chance that the final product contains too much chlorate. The MRLs in potatoes, vegetables, fruit and other foods varies between 0.05 and 0.7 mg / kg of product. The MRLs are set in regulation EC 749/2020 and are effective from the 28th of June 2020.

Maximum levels for Perchlorate in fruit and vegetables, tea, baby food and cereals from the 1st of July.

Perchlorate is one of the contaminants that can get into food. This chemical compound occurs naturally in our environment, but even more because it is a degradation product of fertilizers or disinfectants. Crops can absorb Perchlorate which can result in the contamination of fruits and vegetables with Perchlorate. Long-term consumption of products with perchlorate can cause health risks. That is why the EU has decided to include the levels of Perchlorate in certain products in Regulation EC 1881/2006. From the 1st of July 2020, these maximum levels will apply to the product groups: fruit and vegetables, tea, baby food and processed cereal-based foods.


Perchlorate MRL (mg/kg)
Fruit and vegetables excluding

Cucurbitaceae and Kale

—Leafy vegetables and Herbs




Tea (Camellia sinensis), dried

Herbal and fruit teas, dried

Infant formulas, follow-on formulas, nutrition for

medical use for infants and young children and toddler food (*)

Baby food

Processed cereal-based foods





(*) Preschool food includes milk-based drinks and similar protein-based products for toddlers. These products fall outside the scope of Regulation (EU) No 609/2013

The Residulab of Groen Agro Control can examine your products for Chlorate and Perchlorate residues. For this we have an in-house LC-MSMS method with 0.01 mg/kg as reporting limit. For more information about Perchlorate or Chlorate and the analysis for these residues, please contact us. The MRLs for specific products can also be found in the EU pesticide database (Chlorate) or in the appendix of regulations EC 749/2020 or EC 1881/2006.

Groen Agro Control is closed on Whit Monday

Monday 1st of June we celebrate Whit Monday and our laboratory is closed on this day. Keep this in mind if you want to have samples collected and analysed during this period. The samples from Monday 1st of June will be collected on Tuesday the 2nd of June.

If this change causes any difficulties, please contact Groen Agro Control. Perhaps there is a suitable solution.

For questions please contact us on +31 15 2572511

The laboratories of Groen Agro Control are fully operational

Because the majority of our analyses are carried out in the context of food safety, we are an important part of the food sector. This is why it is very important that our 3 laboratories are fully operational. In this hectic period, the specialists at our laboratories are busy with the analysis of your samples.

For more information, please contact one of our product managers at info@agrocontrol.nl

Updates of the residue screening in fresh produce, cereals and crops

The specialists of our pesticide residue laboratory have recently completed a number of important developments. For the matrices Fresh Produce, Cereals and Crops, various improvements have been made to the Multi-residue methods. New analysis lists for Fresh Produce, Cereals, Crops and Other Matrices will apply from the 24th of February. Below the changes at a glance.

  • New components have been added to the analysis lists of fresh produce, cereals and crops:
    • GC-MSMS: Chlorobenzuron, 2-Phenylhydroquinone, Pyribenzoxime.
    • LC-MSMS: Chlorobenzuron, Fenpicoxamide, Flamprop-methyl, Metamifop, Oxathiapipronil, Thiencarbazone-methyl, Pyriophenone, Bistrifluron
  • Cereals, analysis of mycotoxins has been added to specific analyses.
  • Other matrices, the LOQ of the LC-MSMS has been lowered to 0.01 mg / kg

The new analysis lists can be found on our website.

Analysis of Chlorpropham in fresh produce and swab samples

It is important for growers to analyze potatoes for Chlorpropham. In the course of this year, the European Commission will announce a temporary MRL for Chlorpropham in potatoes. Until the moment of publication of the new MRL, the existing MRL (10 mg / kg) remains in force.

Since this year it is not allowed to use Chlorpropham anymore. The European Food Safety Authority (EFSA) will advise the European Commission on the temporary MRL value. In her advice, EFSA takes into account cross-contamination of potatoes in storage sheds in which Chlorpropham was previously used.

There is still a significant chance that low concentrations of Chlorpropham are measured in potato samples stored in sheds where Chlorpropham was used in the past. If your products do not contain Chlorpropham, this could mean that adjustments to the storage shed are not necessary.

Would you like to check your product for Chlorpropham? Groen Agro Control is an accredited (NEN-EN-ISO 17025) laboratory. Our GC-MSMS analysis method is accredited for potatoes, vegetables and fruit. The analysis of the Chlorpropham component is further accredited in the fresh produce samples. It is also possible to sample surfaces in the storage sheds with swabs or tissues and check these for Chlorpropham residues. For questions, please contact product manager Joke de Geus.