Patent ID: 9368336
Filing Date: 2016-06-14
CPC Classification: H01J

Claim Text:
1. An ion trap-based device for analyzing and detecting bipolar ions, comprising: an ion trap, the ion trap comprising multiple electrodes; a radio frequency voltage source (RF), configured to apply a radio frequency voltage (V) on the electrodes of the ion trap to form a radio frequency electric field; a direct current voltage source, configured to apply a direct current voltage (U) on different electrodes of the ion trap to form a bias electric field, positive ions and negative ions in the ion trap being separated under the effect of the bias electric field; a first detector, disposed outside electrodes of the ion trap for emitting the positive ions and configured to detect the positive ions; and a second detector, disposed outside electrodes of the ion trap for emitting the negative ion and configured to detect the negative ions.