等离子体活化水是一种将气-液放电产生活性物种存储起来的活性溶液。因此，该溶液中含有丰富的氮、氧活性物种，便于存储携带，在生物医学、环境保护和食品安全等领域展现出特有的应用优势。而面对诸多应用，提高等离子体活化水活化效率，实现活化水中氮、氧活性物种针对性调控则成为等离子体活化水技术应用的关键。本项目利用脉冲电源驱动水中毛细管射流阵列放电，产生等离子体高效活化水溶液。通过对放电过程中氮、氧活性物种定性分析和定量诊断，研究放电参数、气体成分、水溶液物化特性等要素对氮、氧活性物种产生种类和含量的影响。参照氮、氧活性物种实验检测结果，建立化学反应速率模型，研究活化水中氮、氧活性物种的产生和淬灭过程的主要途径，结合等离子体活化水杀菌应用研究，分析起主要杀菌作用的氮、氧活性成分。总结并确立等离子体活化水中氮、氧活性物种形成过程的关键因素，为实现氮、氧活性物种针对性调控提供理论依据、技术支持和应用保障。

Plasma activated water which seems like a store that holds the reactive species generated by the underwater discharge is a type of active solution. This active solution is filled with abundant reactive nitrogen species (RNS) and reactive oxygen species (ROS) and it is convenient to be stored and transported. Due to these unique advantages, plasma activated water has attracted great attention on the applications of biomedicine, environmental protection and food safety. However, for further uses, the targeted control of RNS and ROS in plasma effectively activated water becomes a crucial mission. In this project, a pulse-driven underwater micro-discharge array composed of hollow fiber is designed and plasma activated water can be efficiently generated. The RNS and ROS in gas and in liquid are quantitatively analyzed and qualitatively diagnosed. The effects of discharge parameters, working gas composition, physical and chemical properties of water on the kinds and contents of the RNS and ROS are systematically investigated. Refer to the analysis and diagnosis results of RNS and ROS, an optimized chemical reaction rate model is built and the generation and quenching process of RNS and ROS in plasma activated water is determined. With the sterilization application of plasma activated water, the main germicidal RNS and ROS are analyzed. The key factors for the targeted control of RNS and ROS in plasma activated water are summarized. From the investigation in this project, theoretical reference, technical guidance and application protection would be provided.