Development And Evaluation Of The Suitability Of The Method For Determining The Content Of Egg Coccidiostatics Using Ultra Performance Liquid Chromatography - Tandem Mass Spectrometry (UPLC-MS/MS)

The conducted studies assessed the suitability of the method of ultra performance liquid chromatography - tandem mass spectrometry (UPLC-MS/MS) and established the MS/MS detection parameters and determined its validation characteristics for the analysis of residual content of coccidiostatics in food eggs. It has been proved that this method is accurate, practical and universal, which is confirmed by the data of ССα for amprolium – 2.14 μg/kg, diclazuril – 2.37 μg/kg, monensin – 2.34 μg/kg, narazin – 2.28 μg/kg, semduramicin – 2.23 μg/kg, toltrazuril 2.5 – μg/kg, salinomycin – 3.32 μg/kg, halofuginone – 6.18 μg/kg, maduramycin – 13.06 μg/kg, decoquinate – 2.37 μg/kg, robenidine – 26.06 μg/kg, nicarbazine – 316.7 μg/kg, percentage of return is 92.4 – 111 %. The results obtained for assessing the suitability, accuracy and reproducibility of the results meet the requirements of the European Directives.The developed method allows to detect residual amounts of about 12 coccidiostatics that are used in poultry for the prevention of coccidiosis.