Changes of ²H and ¹⁸O abundances in water treated with non‐thermal atmospheric pressure plasma jet

Abstract

We treated water samples with a non‐thermal atmospheric pressure plasma jet and pure gas flow. Stable isotope measurements of water samples were performed by cavity ring‐down spectroscopy. Both plasma and purged gas treated samples resulted enriched in 2H and 18O, contrary to untreated water. The enrichment is dominantly caused by evaporation under non‐equilibrium conditions. The combined effect of ventilation and heating by plasma jet is the most probable reason for higher enrichment with heavier species of plasma treated samples than the ones purged by gas.

The kINPen—a review on physics and chemistry of the atmospheric pressure plasma jet and its applications

“…The additional 25% oxygen loss either originates from different flow conditions with the plasma switched on, or it is caused by chemical reactions. Recently, it was found that treatment of water with the kINPen leads to an enrichment with heavy isotopes, namely 2 H and 18 O [280]. Heavy isotope enrichment by plasma was significantly higher than enrichment with heavy isotopes by a comparable gas flow without plasma.…”

Characteristics and mechanism of moniliform plasma plume in atmospheric argon jet

“…大气压下的低温等离子体射流可以在空气环境中 产生等离子体羽, 实现放电区和应用区分离, 且等离子 体羽具有丰富的活性粒子 [1,2] . 因此, 等离子体射流在 表面改性 [3,4] 、水处理 [5,6] 、癌症治疗 [7,8] 等众多领域具 有广泛的应用潜力.…”

Plasma applications in medicine and dentistry

“…optical emission spectroscopy) za detekciju kemijski aktivnih vrsta, deaktivacija biofilmova na Ti diskovima promatrana je fluorescencijskom mikroskopijom kao i pretražnim elektronskim mikroskopiranjem (SEM, engl. scanning electron microscopy), termalne sonde koriste se za mjerenje temperature plazme i određivanje prenesene toplinske energije, a spektrometrijom izotopnih omjera promatraju se izotopne promjene u plazmom tretiranim tekućinama [11][12][13][14][15][16][17] . Nastojanja da se konstruira što bolji instrument za CAP generiranje rezultirala su mnogobrojnom aparaturom različite konfiguracije i posljedično, mnogobrojnim geometrijama plazme: plazmena igla (engl.…”