Manousi Natalia, Tsiasioti Apostolia, Kabir Abuzar, Rosenberg Erwin
Institute of Chemical Technologies and Analytics, TU Wien, 1060 Vienna, Austria.
Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
Molecules. 2025 Jul 26;30(15):3135. doi: 10.3390/molecules30153135.
In this study, a magnet-integrated fabric phase sorptive extraction (MI-FPSE) protocol was developed in combination with high pressure liquid chromatography-diode array detection (HPLC-DAD) for the simultaneous determination of five phenylurea pesticides (i.e., chlorbromuron, diuron, linuron, metoxuron, monuron) in environmental water samples. To produce the MI-FPSE device, two individual sol-gel coated carbowax 20 M (CW 20 M) cellulose membranes were fabricated and stitched to each other, while a magnetic rod was inserted between them to give the resulting device the ability to spin and serve as a stand-alone microextraction platform. The adsorption and desorption step of the MI-FPSE protocol was optimized to achieve high extraction efficiency and the MI-FPSE-HPLC-DAD method was validated in terms of linearity, sensitivity, selectivity, accuracy, and precision. The limits of detection (LODs) were found to be 0.3 μg L. The relative recoveries were 85.2-110.0% for the intra-day and 87.7-103.2% for the inter-day study. The relative standard deviations were better than 13% in all cases. The green character and the practicality of the developed procedure were assessed using ComplexGAPI and Blue Analytical Grade Index metric tools, showing good method performance. Finally, the developed method was successfully used for the analysis of tap, river, and lake water samples.
在本研究中，开发了一种磁集成织物相吸附萃取（MI-FPSE）方法，并结合高压液相色谱-二极管阵列检测（HPLC-DAD）用于同时测定环境水样中的五种苯基脲类农药（即氯溴隆、敌草隆、利谷隆、甲氧隆、灭草隆）。为制备MI-FPSE装置，制备了两片单独的溶胶-凝胶涂覆的聚乙二醇20M（CW 20M）纤维素膜并相互缝合，同时在它们之间插入一根磁棒，使所得装置能够旋转并作为一个独立的微萃取平台。对MI-FPSE方法的吸附和解吸步骤进行了优化以实现高萃取效率，并对MI-FPSE-HPLC-DAD方法的线性、灵敏度、选择性、准确度和精密度进行了验证。检测限（LOD）为0.3μg/L。日内相对回收率为85.2-110.0%，日间相对回收率为87.7-103.2%。在所有情况下，相对标准偏差均优于13%。使用ComplexGAPI和蓝色分析级指数度量工具评估了所开发方法的绿色特性和实用性，结果表明该方法性能良好。最后，所开发的方法成功用于分析自来水、河水和湖水样品。
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