A new method for the quantification of four aflatoxins (AFB1, AFB2, AFG1, and AFG2) in baby food samples is described herein. In this method, the extraction/cleanup step was performed by using multi-walled carbon nanotubes as a sorbent material in a dispersive solid phase procedure. In sequence, these mycotoxins were quantified via liquid chromatographic coupled with tandem mass spectrometry. The method was fully validated according to the EC/657/2002 and SANCO/12571/2013 directives. Adequate values were obtained for all figures of merit, mainly veracity (recoveries: 75.8 to 120.6%) and quantification limits (LOQs: 60.0 to 560.0 ng kg^-1), with no noticeable matrix effects. The method was tested in real samples (n = 4) and aflatoxin B1 (AFB1) was detected in just one of them. Finally, this analytical procedure has an evident potential to be applied to analyze aflatoxins (and other mycotoxins) in distinct types of complex samples.

本文介绍了一种定量婴儿食品样品中四种黄曲霉毒素（AFB1，AFB2，AFG1和AFG2）的新方法。在这种方法中，萃取/净化步骤是通过在分散固相程序中使用多壁碳纳米管作为吸附材料来进行的。依次，通过液相色谱和串联质谱法对这些真菌毒素进行了定量。该方法已根据EC / 657/2002和SANCO / 12571/2013指令进行了充分验证。对于所有品质因数均获得了足够的值，主要是准确性（回收率：75.8至120.6％）和定量限（LOQ：60.0至560.0 ng kg ^-1），没有明显的基质效应。该方法在真实样品中进行了测试（n= 4），仅在其中一个中检测到黄曲霉毒素B1（AFB1）。最后，这种分析方法具有明显的潜力，可用于分析不同类型复杂样品中的黄曲霉毒素（和其他霉菌毒素）。