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Aflatoxin M1 (AFM1) contamination in milk is a potential risk for animal and human health. The occurrence of AFM1 in raw milk from Minas Gerais State, Brazil, in different climate conditions was evaluated. A total of 129 milk samples were collected from dairy farms in three distinct periods (dry period, transition period and rainy period), and analyzed by enzyme-linked immunoabsorbent assay (ELISA)...
A multiresidue method for the quantification of 13 sulfonamides in animal feed is described. It involves the application of a modified QuEChERS procedure followed by HPLC–MS/MS (high performance liquid chromatography coupled to tandem mass spectrometry) analysis. The best conditions for the extraction solution and PSA (primary secondary amine) mass were determined. After optimization, the method was...
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