数字农科院2.0

Integrating a Multiple Isotopologue Reaction-Monitoring Technique and LC-MS/MS for Quantitation of Small Molecules: Ten Mycotoxins in Cereals as an Example

文献类型： 外文期刊

作者： Feifei Sun;Yanshen Li;Haiguang Tan;Peixu Wu;Yingnan Shencheng;Haopeng Lin;Peng Lu;Rong Zhang;Shuyan Liu;Yi Li;Shupeng Yang

作者机构：

关键词： calibration curve;isotopologue distribution;liquid chromatography-tandem mass spectrometry;mycotoxins;quantitative analysis

期刊名称： Journal of Agricultural and Food Chemistry

ISSN： 0021-8561

年卷期： 2024 年 72 卷 12 期

页码：

收录情况： SCIE（2024版） ; ; EI（2024版）

摘要： Accurate quantification of mycotoxin in cereals is crucial for ensuring food safety and human health. However, the preparation of traditional multisample external calibration curves (MSCCs) is labor-intensive and error-prone. Here, a multiple isotopologue reaction-monitoring (MIRM)-LC-MS/MS method for accurate quantitation of ten major mycotoxins in cereals was successfully developed and validated, where a novel one-sample multipoint calibration curve (OSCC) strategy is used instead of MSCCs. The OSCC can be established by examining the correlation between the calculated theoretical isotopic abundances and the measured abundance across various MIRM channels. In comparison to the MSCC, the OSCC strategy exhibits outstanding performance including superior selectivity, accuracy (78.4-108.6%), and precision (<12.5%). Furthermore, the proposed OSCC-MIRM-LC-MS/MS method was successfully applied to investigate mycotoxin contamination in cereal samples in China. Considering the advantages of simplified workflows and improved throughput, the OSCC-MIRM-LC-MS/MS methodology holds great promise for accurately quantifying chemical contaminants in foods.

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