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Determination of multiple mycotoxins in Qatari population serum samples by LC-MS/MS

In: World Mycotoxin Journal
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B.A. Al-Jaal Anti-Doping Lab Qatar, Sport city street, P.O. Box 27775, Doha, Qatar.

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A. Latiff Anti-Doping Lab Qatar, Sport city street, P.O. Box 27775, Doha, Qatar.

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S. Salama Anti-Doping Lab Qatar, Sport city street, P.O. Box 27775, Doha, Qatar.

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A. Barcaru Department of Analytical Biochemistry, Groningen Research Institute of Pharmacy, University of Groningen, 9713 AV Groningen, the Netherlands.
Departments of Laboratory Medicine, University Medical Center Groningen, P.O. Box 30001, 9700 RB Groningen, the Netherlands.

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P. Horvatovich Department of Analytical Biochemistry, Groningen Research Institute of Pharmacy, University of Groningen, 9713 AV Groningen, the Netherlands.

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M. Jaganjac Anti-Doping Lab Qatar, Sport city street, P.O. Box 27775, Doha, Qatar.

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Human exposure to mycotoxins is almost inevitable as mycotoxins are naturally occurring contaminants of large portion of food and feed. Depending on the type of mycotoxins, inter-individual mycotoxin adsorption, bioaccumulation, distribution, metabolism and excretion, can cause serious adverse health effects. Therefore, continuous biomonitoring studies of population exposure to mycotoxins are needed. Here we describe a multi-analyte approach for the detection and quantification of 20 mycotoxins in human serum using ultra-performance liquid chromatography-electrospray/tandem mass spectrometry operated in targeted multiple reaction monitoring mode. The validated method was used to assess occurrence of mycotoxins in serum samples of 46 residents of Qatar. Mycotoxins that were detected with high incidence were HT-2 toxin (13.0%), sterigmatocystin (10.9%) and 3-acetyldeoxynivalenol (6.5%). Also, co-exposure to several mycotoxins was noticed in the analysed samples. Our results show that strict food quality control is needed to remove mycotoxin contaminated food from the market in order to minimise human exposure to mycotoxins.

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