Thermal desorption‐electrospray ionization tandem mass spectrometry (TD‐ESI/MS/MS) was used to rapidly characterize the residual pesticides collected on the surface of a strawberry with a metallic probe. Twelve pesticides, including nine fungicides and three miticides, were detected; the results were validated by comparison with results that used solvent extraction followed by gas chromatography/mass spectrometry and liquid chromatography/tandem mass spectrometry analyses. The distribution of pesticide residues on a strawberry's surface was explored by collecting multiple samples using probes from 40 positions on the strawberry, with the collected samples being analyzed with TD‐ESI/MS/MS. The obtained molecular information was used to construct mass spectrometry imaging of the strawberry's pesticide residues.

中文翻译：

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通过探针采样和环境电离质谱分析获得草莓表面农药残留的分子成像

热解吸-电喷雾电离串联质谱 (TD-ESI/MS/MS) 用于通过金属探针快速表征在草莓表面收集的残留农药。检出12种农药，包括9种杀菌剂和3种杀螨剂；通过与使用溶剂萃取后进行气相色谱/质谱和液相色谱/串联质谱分析的结果进行比较来验证结果。通过使用探针从草莓上的 40 个位置收集多个样品来探索草莓表面农药残留的分布，并使用 TD-ESI/MS/MS 分析收集的样品。获得的分子信息用于构建草莓农药残留的质谱成像。