Low Voltage Spark Discharge as an Aerosol Generator of Metal Samples for ICP Emission Spectrometry

Abstract

A low voltage spark discharge has been investigated as an aerosol generator of metal samples for ICP emission spectrometry. Fine particles of aluminum alloys could be produced by low voltage spark discharge in argon atmosphere, and more intense specral lines could be observed by introduction of the aerosol into the ICP plasma, compared with low voltage spark excitaition. A calibration curve of high silicon concentration, which was difficult to dissolve into solution, was obtained when a series of reference samples were available.