This work reports a highly luminescent metal-organic framework (MOF) with high surface area of 4073.9 m² g⁻¹, exhibiting an excellent adsorption ability and sensing performance in rapidly detecting parathion-methyl. This is an excellent example of luminescent MOFs to sensitively detect pesticides by fluorescent quenching with satisfactory results. This sensor provides a very wide linear detection range from 1.0 μg kg⁻¹ to 10 mg kg⁻¹, and low limit of detection 0.12 μg kg⁻¹ (0.456 nM) for parathion-methyl. This low detection limit is much lower than the maximum residue limits (MRL) in the European Union pesticides database (0.01 mg kg⁻¹ for fruits and vegetables, 0.02 mg kg⁻¹ for tree nuts), as well as those of previous assays. The quenching effect of parathion-methyl is attributed to the electron-rich chemical group of nitroaromatics which might lead to photo-induced electron transfer. The fluorescent method has been reliably used for the determination of parathion-methyl in spiked irrigation water with satisfactory results, which suggests its potential for rapid detection of pesticides in food and environmental sample.

这项工作报告了高发光的金属有机骨架（MOF），具有4073.9 m ²  g ^-1的高表面积，在快速检测对硫磷甲基中表现出出色的吸附能力和传感性能。这是发光MOF通过荧光猝灭法灵敏检测农药的一个极好的例子，具有令人满意的结果。该传感器提供从1.0μgkg ^-1到10 mg kg ^-1的非常宽的线性检测范围，并且对甲基对硫磷的检测下限为0.12μgkg ^-1（0.456 nM）。这种低检测限比在欧洲联盟杀虫剂数据库中的最大残留限量（MRL）低得多的（0.01毫克千克^-1为水果和蔬菜，0.02毫克公斤^-1（对于坚果），以及以前的分析。甲基对硫磷的猝灭作用归因于硝基芳族化合物的富电子化学基团，它可能导致光诱导的电子转移。荧光法已被可靠地用于加标灌溉水中甲基对硫磷的测定，结果令人满意，这表明该方法可快速检测食品和环境样品中的农药。