Development and application of salting-out assisted liquid/liquid extraction for multi-mycotoxin biomarkers analysis in pig urine with high performance liquid chromatography/tandem mass spectrometry
文献类型: 外文期刊
第一作者: Song, Suquan
作者: Song, Suquan;Ediage, Emmanuel Njumbe;De Saeger, Sarah;Song, Suquan;Wu, Aibo
作者机构:
关键词: Biomarker;LC-MS/MS;Mycotoxins;Pig urine;Salting-out liquid-liquid extraction
期刊名称:JOURNAL OF CHROMATOGRAPHY A ( 影响因子:4.759; 五年影响因子:4.302 )
ISSN:
年卷期:
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收录情况: SCI
摘要: Direct determination of urinary mycotoxins is a better approach to assess individual's exposure than the indirect estimation from average dietary intakes. In this study, a new analytical method was developed and validated for simultaneous analysis of aflatoxin B_1, deoxynivalenol, fumonisin B_1, ochratoxin A, zearalenone and T2 toxin and their metabolites in pig urine. In total 12 analytes were selected. A salting-out assisted liquid-liquid extraction procedure was used for sample preparation. High performance liquid chromatography/tandem mass spectrometry was used for the separation and detection of all the analytes. The extraction recoveries were in a range of 70-108%, with the intra-day relative standard deviation and inter-day relative standard deviation lower than 25% for most of the compounds at 3 different concentration levels. Meanwhile the method bias for all the analytes did not exceed 20%. The limits of quantification ranged from 0.07ngmL~(-1) for ochratoxin A to 3.3ngmL~(-1) for deoxynivalenol. Matrix effect was evaluated in this study and matrix-matched calibration was used for quantification. The developed method was also validated for human urine as an extension of its application. Finally, the developed method was applied in a pilot study to analyze 28 pig urine samples. Deoxynivalenol, aflatoxin B_1, fumonisin B_1 and ochratoxin A were detected in these samples.
分类号: O65
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