Quaternary Ammonium Compounds
AGQ USA has developed an internally validated method for didecyldimethylammonium chloride (DDAC) and benzalkonium chloride (BAC) in a wide range of fruits and vegetables. These are two key quaternary ammonium compounds (QACs or Quats) that are used for disinfectants, biocides, and plant protection purposes.
In the United States quaternary ammonium compounds are not considered pesticides and therefore do not have MRLs. In the European Union, quaternary ammonium compounds classification as a plant protection active substance makes them subject to EC Regulation 396/2005. The MRLs for quaternary ammonium compounds in the EU is 0.1 mg/kg (ppm).
The RASSF Portal has numerous alerts for these chemicals in food and any exporter to the EU should test their product.
Quaternary Ammonium Compounds (QATs or Quats)Parameters:
Didecyldimethylammonium chloride (DDAC)
Benzalkonium chloride (BAC)
Limit of Quantitation:
0.01 mg/kg (ppm)
All types of Fruits and Vegetables
Minimum Sample Size:
5 business days
ML-6000-USA (Quaternary Ammonium)
This test is not currently covered in AGQ USA's ISO/IEC 17025:2005 accreditation.