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Semi-automatic emulsification liquid-liquid microextraction with deep eutectic solvent for the determination of strobilurin fungicides in food samples

文献类型： 外文期刊

作者： Wang, Yuxin 1 ; Wang, Yulin 1 ; Fu, Jizhen 2 ; Li, Suzhen 2 ; Zhang, Yawen 1 ; Zheng, Xiaojiao 1 ; Liu, Jin 1 ; Li, Li 2 ; Jing, Xu 1 ;

作者机构： 1.Shanxi Agr Univ, Coll Food Sci & Engn, Taigu 030031, Shanxi, Peoples R China

2.Shanxi Agr Univ, Coll Plant Protect, Shanxi Key Lab Integrated Pest Management Agr, Taiyuan 030031, Shanxi, Peoples R China

关键词： Emulsification liquid-liquid microextraction; Deep eutectic solvent; Strobilurin fungicides; Semi-automation microextraction; Green analytical chemistry

期刊名称：TALANTA （ 影响因子：6.1； 五年影响因子：5.5 ）

ISSN： 0039-9140

年卷期： 2025 年 287 卷

页码：

收录情况： SCI

摘要： In this study, a rapid and simple semi-automatic emulsification liquid-liquid microextraction technique based on deep eutectic solvents was developed for determining strobilurin fungicides in food samples using highperformance liquid chromatography. Novel deep eutectic solvents formed as extractants by combining quaternary phosphates and fatty acids, eliminating the need for toxic solvents in liquid-phase microextraction. The extraction process was facilitated by an electric micropipette, which emulsified and injected the deep eutectic solvent-water mixture directly into the sample. The semi-automated approach enhanced extraction speed and efficiency while minimizing manual error. The sample and deep eutectic solvent mixture were emulsified immediately and separated within 15 min of standing. Only an electronic micropipette was used to achieve extraction and separation. The method demonstrated a linear range of 2-200 mu g L- 1 with R-2 > 0.996 and a limit of detection of 0.6 mu g L- 1 . Recovery ranged from 73.0 % to 100.1 %, with relative standard deviations from 0.4 % to 6.1 %. The greenness of the method was validated through multiple assessment tools, including the Green Analytical Procedure Index, Analytical GREEnness metric for sample preparation, and Sample Preparation Metric of Sustainability. The emulsification liquid-liquid microextraction procedure, based on innovative solvents and electric micropipette technology, proved successful for application in water, juice, and vinegar samples and showed potential for broader use in pesticide residue analysis in food.

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