Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Metallurgy, Technical University of Catalonia (UPC), c. Eduard Maristany 16, 08019 Barcelona, Spain.
Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, Barcelona, Spain.
Anal Chem. 2021 Mar 2;93(8):3666-3670. doi: 10.1021/acs.analchem.0c04906. Epub 2021 Feb 17.
HO radicals are the most important reactive species generated during water treatment by non-thermal plasma devices. In this letter, we report the first quantification of the steady-state concentration and lifetime of plasma-produced hydroxyl radicals in water solutions at pH 3 and 7, and we discuss the differences based on their reactivity with other plasma-generated species. Finally, we show to what extent the use of chemical probes to quantify short-lived reactive species has an influence on the results and that it should be taken into account.
HO 自由基是在非热等离子体设备处理水的过程中产生的最重要的活性物质。在这封信中，我们报告了在 pH 值为 3 和 7 的水溶液中，等离子体产生的羟基自由基的稳态浓度和寿命的首次定量结果，并根据它们与其他等离子体产生的物质的反应性讨论了差异。最后，我们展示了使用化学探针来定量短寿命活性物质对结果的影响程度，并且应该考虑到这一点。
