Fluorine-containing pesticides (FCPs) are widely employed in modern agriculture because of their good bioactivity. However, their harmful impacts on humans and the ecosystem are increasing persistently owing to their overcommitment and bioconcentration in water and the soil. Concurrently, as the molecular probes for detecting FCPs are extremely rare, a multifunctional probe, N-(purinyl)-2-chromene-3-carbohydrazide (), was designed and synthesized in this study to simultaneously detect two FCPs, teflubenzuron and fluazuron. exhibited good sensitivity and selectivity toward both substances based on the supramolecular interaction driven by intermolecular hydrogen bonding. Furthermore, the detection limits for teflubenzuron and fluazuron were as low as 91.6 and 43.2 nM, respectively. Additionally, could detect teflubenzuron in real water samples and detect ferric ions (Fe) in living cells, with low cytotoxicity. This method for detecting FCP and Fe exhibited great potential for its mild conditions and facile operation; moreover, it did not require any pretreatment and large instruments. Thus, this study presents a novel probe and a convenient method for detecting teflubenzuron and fluazuron with good sensitivity and via a facile operation, which are conducive and may be employed in environmental analysis.

中文翻译：

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用于含氟农药检测的新型(2,6-二氟苯甲酰基)脲激活荧光探针

含氟农药（FCPs）因其良好的生物活性而在现代农业中得到广泛应用。然而，由于它们在水和土壤中的过度使用和生物富集，它们对人类和生态系统的有害影响持续增加。同时，由于检测FCPs的分子探针极为罕见，本研究设计并合成了一种多功能探针N-(嘌呤基)-2-色烯-3-碳酰肼(N-(purinyl)-2-chromene-3-carbohydrazide)，可同时检测氟苯脲和氟天脲两种FCPs。基于分子间氢键驱动的超分子相互作用，对这两种物质表现出良好的灵敏度和选择性。此外，氟苯脲和氟苯脲的检测限分别低至 91.6 和 43.2 nM。此外，可以检测真实水样中的氟苯脲和检测活细胞中的铁离子（Fe），细胞毒性低。这种检测FCP和Fe的方法因其条件温和、操作简便而展现出巨大的潜力。此外，它不需要任何预处理和大型仪器。因此，本研究提出了一种新颖的探针和简便的方法来检测氟苯脲和氟苯脲，其灵敏度高，操作简便，有利于环境分析。