The present study applying a plasma jet to activate water in a controllable environment is aimed to investigate the effect of a combination of (working/chamber gas) on the properties of plasma‐activated water. After 10 min of activation, results reveal that a significant decrease in solution pH is observed with the presence of N₂. Hydrogen peroxide appears to be the major species for most gas mixtures, except [Ar + air/Ar] and [Ar + air/air], where nitrite and nitrate dominate. A gas mixture of [Ar + air/Ar] produces the maximum concentration of , while the maximum and H₂O₂ are observed for [Ar + air/air] and (Ar/Ar), respectively. Overall, the antibacterial efficacy correlates well with concentration.

中文翻译：

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混合气体对等离子活化水性能影响的研究

本研究应用等离子流在可控环境中活化水，旨在研究（工作气体/腔室气体）组合对等离子活化水性能的影响。活化10分钟后，结果显示，在存在N ₂的情况下，观察到溶液的pH值明显降低。过氧化氢似乎是大多数气体混合物的主要物质，除了[Ar +空气/ Ar]和[Ar +空气/空气]以外，其中亚硝酸盐和硝酸盐占主导地位。[Ar +空气/ Ar]的气体混合物产生最大浓度的，而[Ar +空气/空气]和（Ar / Ar）分别观察到最大和H ₂ O ₂。总体而言，抗菌功效与浓度密切相关。