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首页> 外文期刊>ACS applied materials & interfaces >Trace Detection of Organophosphorus Chemical Warfare Agents in Wastewater and Plants by Luminescent UIO-67(Hf) and Evaluating the Bioaccumulation of Organophosphorus Chemical Warfare Agents
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Trace Detection of Organophosphorus Chemical Warfare Agents in Wastewater and Plants by Luminescent UIO-67(Hf) and Evaluating the Bioaccumulation of Organophosphorus Chemical Warfare Agents

机译：通过发光UIO-67（HF）进行废水和植物中有机磷化学战剂的痕量检测，评价有机磷化学战剂的生物累积

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Organophosphorus chemical warfare agents (OPCWAs) are a group of organic pollutants characterized by high toxicity and chemical stability, and they are very difficult to be degraded. The trace quality of OPCWAs in water and food will cause great harm to the human body. Therefore, the detection of OPCWAs is a difficult challenge, which has become the research hotspot over the world. In this work, a Hf-based luminescent metal-organic framework (Eu@1) is prepared, and the reactivity of Hf-12 results in a methanephosphonic acid (MPA)-induced luminescence quenching and the charge transfer from MPA to Hf(IV) and generated exciplexes which are responsible for this quenching effect. The excellent performance of Eu@1 in the detection of MPA, with its finer selectivity, high sensitivity (LOD = 0.4 ppm), and large linear range (10(-7) to 10(-3) M), is encouraging for application in wastewater detection. Importantly, MPA is a pollutant that can be absorbed by plants and causes the bioaccumulation effect, and thus, the detection of MPA in real plant samples is a purposeful topic. Eu@1 also achieved satisfactory results in actual plant sample testing, and the bioaccumulation of MPA in onions, turnips, and cabbages is determined via our sensor. This fabricated detector provides a feasible path for the detection of ppm-level OPCWAs in a complex environment, which will help humans to avoid OPCWA-contaminated foods.
机译：有机磷化学战剂（OPCWA）是一组有机污染物，其特征在于高毒性和化学稳定性，它们非常难以降解。水和食物中的OPCWA的痕量质量会对人体造成巨大危害。因此，检测OPCWA是一个艰难的挑战，已成为世界上的研究热点。在这项工作中，制备了基于HF的发光金属 - 有机骨架（EU @ 1），HF-12的反应性导致甲基膦酸（MPa）诱导的发光淬火和来自MPa至HF的电荷转移（IV ）并产生对该淬火效果负责的反应性。 Eu @ 1在检测MPa中的优异性能，具有更精细的选择性，高灵敏度（LOD = 0.4ppm）和大线性范围（10（-7）至10（-3）M），令应用令人鼓舞在废水检测中。重要的是，MPA是一种污染物，可被植物吸收并导致生物累积效应，因此，在真实植物样本中的MPa检测是一个有目的的主题。 EU @ 1也实现了令人满意的实际植物样品检测结果，并且通过我们的传感器确定了洋葱，萝卜和纸盆中MPa的生物累积。这种制造的检测器提供了一种可行的路径，用于检测在复杂的环境中的PPM级OPCWA，这将有助于人类避免污染的食物。

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