【摘要】 为改进我国食品安全监测的方法,采用QuEChERS净化方法结合超高效液相色谱-串联质谱（UPLC-MS/MS）对玉米中的真菌毒素进行检测,建立了玉米中共17种真菌毒素的测定方法。结果表明:17种毒素的线性相关系数（R²）均不小于0.994,检出限为0.1～20.0μg·kg^-1,加标回收率为70.76%～115.14%,相对标准偏差为2.21%～11.34%。该方法具有快速、准确、提取效率高、净化效果好、回收率高、准确灵敏等优点,此方法可适用于玉米和食品中17种真菌毒素的快速检测。更多还原

【Abstract】 In order to improve the method of food safety monitoring in China,QuEChERS purification method combined with ultra performance liquid chromatography-tandem mass spectrometry（UPLC-MS/MS）was used to detect mycotoxins in maize,and a method for determination of 17 mycotoxins in maize was established.The results showed that the linear correlation coefficient（R²）of 17 toxins was not less than 0.994,the detection limit was 0.1～20.0μg·kg^-1,the recoveries were 70.76%～115.14%,and the relative standard deviation was2.21%～11.34%.The method has the advantages of fast,accurate,high extraction efficiency,good purification effect,high recovery rate,accuracy and sensitivity,and the method can be applied to the rapid detection of 17 mycotoxins in maize and food.更多还原