Patent ID: 9310335
Filing Date: 2016-04-12
CPC Classification: G01N

Claim Text:
1. An ion analysis device, comprising: an ion source, the ion source including a spark ion source with a plurality of electrodes, at least a first electrode and a second electrode in the plurality being separated by a gap and configured to permit a spark discharge therebetween; and a controller that controls a switching frequency of voltage changes to the electrodes of the ion source in order to alternatively push positive ions and negative ions generated by spark discharge from the ion source, wherein the controller includes a computer controlled high voltage fast switching circuit that is able to produce stable voltages during analysis and rapidly switch polarity of the first electrode and the second electrode at any time after completion of a spectrum and wherein the positive ions are pushed in response to the controller providing a first polarity to the first electrode and the second electrode and the negative ions are pushed in response to the controller providing a second polarity to the first electrode and the second electrode that is opposite of the first polarity.