Publication detail

The study of plasma effects on quinine solutions

PROCHÁZKOVÁ, M. PAWLAT, J. KRČMA, F. KOZÁKOVÁ, Z.

Czech title

Studie vlivu plazmatu na roztoky chininu

English title

The study of plasma effects on quinine solutions

Type

journal article in Web of Science

Language

en

Original abstract

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 μg 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.

Czech abstract

Práce porovnává vliv nízkoteplotního plazmatu na vodné roztoky chininu, a to pro dvě konfigurace – koróně podobný výboj a klouzavý obloukový výboj (GAD). Do roztoků chininu byly přidávány různé elektrolyty s cílem upravit počáteční pH a zvýšit elektrickou vodivost pro zapálení výboje přímo v kapalině. Lehce vyšší míra rozkladu chininu (2,9 μg W−1) byla dosažena po 5 minutách v GAD. Z naměřených spekter bylo zjištěno, že se absorpční maximum při 332 nm rozděluje v kyselém a zásaditém roztoku na dva samostatné píky. Studium časové stability roztoků chininu ukázalo jejich nestabilitu a fakt, že doba po přípravě roztoků má významný vliv na efekt ošetření plazmatem.

English abstract

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 μg 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.

Keywords in Czech

korónový výboj, environmentální aplikace, klouzavý obloukový výboj, výboj ve vodě, chinin

Keywords in English

corona discharge, environmental applications, gliding arc discharge, plasma discharge in water, quinine

Released

23.12.2021

ISSN

1612-8850

Volume

19

Number

4

Pages from–to

2100184-1–2100184-9

Pages count

9

BIBTEX


@article{BUT175580,
  author="Michaela {Procházková} and František {Krčma} and Zdenka {Kozáková},
  title="The study of plasma effects on quinine solutions",
  year="2021",
  volume="19",
  number="4",
  month="December",
  pages="2100184-1--2100184-9",
  issn="1612-8850"
}