Background. Cereal grains are an important for the nutrition of both humans and animals, and contribute to the nutrition cycle in different ways. Chemical contaminants are important to be monitored in food due to their direct effects on human health. Objective. This work aimed to monitor some of the hazardous chemical contaminants i.e., organochlorines (OCs), pyrethroids, polychlorinated biphenyls (PCBs), and polycyclic aromatic hydrocarbons (PAHs) in wheat and barley grains of European origin during 2019. Method. Samples were collected consecutively during the season and the QuEChERS technique (quick, easy, cheap, effective, rugged, and safe) followed by GC-tandem mass spectrometry (GC-MS/MS) analysis was used in the extraction and cleaning up for all analyzed compounds. The method was verified, and a recovery study was performed at two spiking levels: 0.01 and 0.05 µg/g. RSD (%), LOD, and LOQ were calculated. Recovery ranged from 78.70-104.00% for all compounds at both levels at RSD 2.16-11.76%....

You do not currently have access to this content.