Investigation on the Synthesis and Application of Fluorescent Probes for Hypochlorous Acid

分子传感器的重要特征就是能够将物质的化学组成信息转换为可测量的光电信号，因而具有灵敏度高、操作简便、易于实现快速检测的优点。由于它在生物、能源、环境、卫生防疫、军事国防中的重要应用，已成为目前国际分析化学前沿性研究热点之一。香豆素及萘酰亚胺具有良好的光谱性能，在分子传感器的设计中已有广泛的应用。本文在前人工作的基础上根据一些特异性化学反应设计合成了若干光学分子传感器。本论文共分四章，分别包括以下内容： 第一章，绪论。首先简要介绍了光学分子传感器的基本概念、研究现状和发展趋势；其次介绍了次氯酸及生理毒性汞离子光学分子传感器的研究现状和进展；最后，对这些相关研究进行分析总结，结合本实验室的工...Optical molecular chemosensors (OMCSs) obtain one of the most important point is that it can transform the information of chemical composition in substance to the analytical useful signals. So it has the advantages of high sensitivity, easily operate and fast detection. Owing to the application in the field of biology, energy, environment, sanitation and national defence, OMCS has become one of fr...学位：理学硕士院系专业：化学化工学院化学系_分析化学学号：2052008115164

JUNO Sensitivity on Proton Decay p→νˉK+p\to \bar\nu K^+ Searches

The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this paper, the potential on searching for proton decay in $p\to \bar\nu K^+$ mode with JUNO is investigated.The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits to suppress the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via $p\to \bar\nu K^+$ is 36.9% with a background level of 0.2 events after 10 years of data taking. The estimated sensitivity based on 200 kton-years exposure is $9.6 \times 10^{33}$ years, competitive with the current best limits on the proton lifetime in this channel

JUNO sensitivity on proton decay p → ν K + searches*

The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this study, the potential of searching for proton decay in the $p\to \bar{\nu} K^+$ mode with JUNO is investigated. The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits suppression of the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via $p\to \bar{\nu} K^+$ is 36.9% ± 4.9% with a background level of $0.2\pm 0.05({\rm syst})\pm$$0.2({\rm stat})$ events after 10 years of data collection. The estimated sensitivity based on 200 kton-years of exposure is $9.6 \times 10^{33}$ years, which is competitive with the current best limits on the proton lifetime in this channel and complements the use of different detection technologies