Fig. 13.

The H₂O₂ concentrations on peroxide test strips increased following exposure time and NP. The wet test strips were exposed to the plasma plume with the nozzle fixed at 0.5 cm above the strips. The air plasma jets were generated with fixed parameters: PW = 1, PD = 12, and BRR = 2. The different conditions were (a) NP = 5, exposure time (t) = 30 s; (b) NP = 5, t = 60 s; (c) NP = 10, t = 30 s; and (d) NP = 10, t = 60 s H₂O₂, hydrogen peroxide; NP, number of pulses in a burst; PW, pulse width; PD, pulse delay time; BRR, burst repetition rate.