Determination of Ochratoxin A in Pig Kidneys by Immunoaffinity Cleanup and Ultra-High Performance Liquid Chromatography

文献类型： 外文期刊

第一作者： Hou, YaLi

作者： Hou, YaLi;Lv, FengLin;Hou, YaLi;Li, YuPing;Xie, JiangHua;Zhou, Li;Zhou, Jinhui

作者机构：

期刊名称：JOURNAL OF AOAC INTERNATIONAL （ 影响因子：1.913； 五年影响因子：1.754 ）

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收录情况： SCI

摘要： An accurate method was developed for determining ochratoxin A (OTA) in pig kidney using an immunoaffinity column for cleanup and ultra-HPLC/MS/MS for identification and quantification. Mean recoveries of OTA from kidney samples fortified at 0.10-5 mu g/kg levels ranged from 74 to 92%, with RSDs of 4.6-7.5%. The LOD was estimated to be 0.03 mu g/kg and the LOQ was 0.10 mu g/kg based on an S/N in kidney of 3:1 and 10:1, respectively. The developed method was used for the determination of OTA in pig kidney. A survey of the OTA content of pig kidneys slaughtered in Chongqing, China, revealed that 35 out of 40 analyzed samples were contaminated; the OTA concentration in kidney ranged from trace level (0.03-0.1) to 0.323 mu g/kg. This method was shown to be useful for accurately evaluating the intake of OTA from pig kidneys.

分类号： O65

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