Fipronil Testing in Contaminated Eggs

Fipronil is an insecticide commonly used in veterinary products to treat fleas, mites and marks.  However, it is banned from the use in animals that will enter the food chain such as chickens.

Recent unauthorised use of products containing Fipronil has led to its residues to be found in eggs that have entered the food chain in mainland Europe and in small numbers of eggs entering the UK market. Additional goods produced with eggs containing Fipronil may also have entered the food chain.

According to the World Health Organisation (WHO) fipronil is moderately toxic when consumed by humans and can cause kidney, liver or thyroid damage.

Large quantities of eggs have been recalled and destroyed from shops and warehouses in Belgium, Netherlands and Germany after testing showed high levels of the insecticide Fipronil.

At Concept Life Sciences, we understand that there will be concerns for our customers and have been at the forefront of developing a testing service to detect Fipronil contamination in raw eggs and related produce such as mayonnaise.  Work is in progress to ensure the method can be applied to cooked egg products.

Current methodology can offer the following:

Limit of detection: 0.003mg/kg (The legal limit for eggs is currently 0.005mg/kg). The test is not accredited, however, with each batch of samples tested, appropriate QC samples will be tested to ensure validity of the data.

The testing will include its major metabolite.

For further information, email: or contact Dr Naresh Patel on 07843 317 144.

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