An analysis of mass spectrometric study of negative ions extracted from negative corona discharge in air

摘要: In this paper we report the detection and mass analysis of negative ions formed in a corona discharge using both dry ‘wet’ air at pressures between 5 27 kPa. The yield individual is strongly affected by trace concentrations ozone, nitrogen oxides water vapour. dominant ion CO3−. presence converted very efficiently to cluster containing one more molecules. If ozone are added, or produced sufficient concentrations, NO3− hydrated clusters formed. Ozone greater than 25 ppm completely suppress appearance O2− its wet air. Such observations allow comprehensive review physical chemical processes within discharge.