The study of plasma effects on quinine solutions

This study compares the effects of nonthermal plasma treatment on quinine water solutions for two configurations-the corona-like discharge and the gliding arc discharge (GAD). Different electrolytes were added to the quinine solutions to modify the initial pH and enhance electrical conductivity for plasma discharge ignition directly in the liquid. A slightly higher quinine decomposition rate of 2.9 mu g W-1 after 5 min of the treatment was achieved by GAD. From measured spectra, it was found that the absorption maximum at 332 nm was split into two separated peaks in the acidic and basic solution. The study of the time stability of quinine solutions has revealed quinine instability and that postpreparation time has influenced the plasma treatment effect.

Automated summary

This study compared the effects of nonthermal plasma treatment on quinine water solutions using two different configurations, and investigated the impact of adding different electrolytes and modifying initial pH on plasma discharge. The results showed that the gliding arc discharge achieved a slightly higher quinine decomposition rate, and that the stability of quinine solutions was influenced by the post-preparation time.