Rf surfaces and rf ion guides

Abstract From the Canadian patent

Apparatus and methods are provided for trapping manipulation and transferring , ions along RF and DC potential surfaces and through RF ion guides. Potential wells are formed neap, RF-field generating surfaces due to the overlap of the radio-frequency (RF) fields and, electrostatic fields created by static potentials applied to surrounding electrodes. Ions can be, constrained and accumulated overtime in such wells. During confinement ions , may be, subjected to various processes such as accumulation, fragmentation, collisional cooling focusing, mass-to-charge filtering, spatial separation ion mobility and chemical interactions, leading to improved performance in subsequent processing and …