Figure 3.

Short- and long-lived RONS present in plasma-treated PBS. (a) H₂O₂; (b) DMPO-OH and DEPMPO-OOH adducts; (c) NO₂⁻, NO₃⁻ and NO₂⁻ + NO₃⁻ were detected in plasma-treated PBS by EPR and colourimetry (see Mat. and Met.). Experiments were carried out in 200 μL pPBS, using dry He, He + 5% or 20% H₂O vapour saturation. Data represent mean values (n ≥ 2).