Akademik Veri Yönetim Sistemi
7th International Eurasian Conference on Biological and Chemical Sciences (EurasianBioChem 2024), Ankara, Türkiye, 2 - 04 Ekim 2024, ss.119
Pesticides are used for protect to agricultural products from some harmful organisms such as insects, fungicides
and herbicides. The control of foods before consumption became an obligation, due to the noncontrolled and
excessively usage of pesticides to the products. The pesticide residue analysis in foods is challenging matter
owing to interference factors of complex matrixes. The naturally pigments such as chlorophyll and carotenoid
are one of the interference factors, that decrease the sensitivity and reliability of analysis, to be overcome in
green, leafy vegetables. Carbonous materials are preferred for removal of chlorophylls and carotenoids from
extract. In this study, d-SPE clean-up step of QuEChERS method was modified by using iron-nitrogen doped
graphene (Fe-N-GN). Arugula was preferred as a matrix that was rich about chlorophyll and carotenoids.
Acetamiprid, imidacloprid and thiamethoxam were studied as representative neonicotinoid pesticides. In the
scope of validation linearity, limit of detection (LOD), limit of quantification (LOQ), repeatability and
reproducibility parameters were studied via LC-MS/MS. As a result of validation study the mean recoveries
of acetamiprid, imidacloprid and thiamethoxam were calculated 97.77%, 98.02% and 90.92%, respectively.
The LOQ and relative standard deviations (RSD) for repeatability and reproducibility of all three pesticides
were calculated <0.01 mg kg-1
and <20%, respectively.