赭曲霉毒素A
探索者
玉米赤霉烯酮
化学
真菌毒素
白僵菌素
黄曲霉毒素
污染
色谱法
交链孢酚
食品科学
杀虫剂
农学
生物
农药残留
生态学
作者
Jian Zhou,Dandan Zhang,Xiaohong Chen,Yanbo Guo,Mi-Cong Jin,Yong‐Gang Zhao
标识
DOI:10.1016/j.chroma.2021.462486
摘要
A rapid and efficient QuEChERS-based preparation method was established for the simultaneous determination of 43 mycotoxins in chestnut and jujube (Chinese date). The contaminants were extracted using acetonitrile and subjected to dispersive solid-phase extraction for further clean-up. Central composite design was conducted to overcome the limitations of conventional optimization methods, and assess the interaction effects between variables and reach the true optimal conditions. Quantitative analysis was performed on UHPLC-MS/MS with the aid of stable isotope internal standards and matrix-matched curves, whereas qualitative identification was carried out by using high-resolution MS based on exact masses and fragmentation patterns. In addition to the mycotoxins that are routinely monitored (like aflatoxins, ochratoxin A, etc.), this study also revealed a non-negligible contamination of zearalenone (56/170), beauvericin (52/170), enniatin B (43/170), and alternariol monomethyl ether (42/170) in chestnut and jujube, especially the chestnut flour.
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