Systems and methods for separating ions at about or above atmospheric pressure

A system for separating and analyzing ions, the system comprising:

• an ionization source that generates ions;
• an ion trap maintained at about or above atmospheric pressure that comprises an interior chamber, comprising a first exit port on a top of the chamber and a second exist port on a bottom of the chamber, a first channel operable coupled to the first exit port and comprising a first plurality of electrodes and a first channel outlet, and a second channel operable coupled to the second exit port and comprising a second plurality of electrodes and a second channel outlet;
• and
• an ion detector;
• wherein the system is configured such that a combination of a gas flow and one or more frequency components of an electric field produced in the chamber separates the ions based on mass-to-charge ratio and sends the separated ions through the first and second exit ports and through the first and second outlets to the ion detector.