Patent ID: 7838826

Claim:
A combination spectrometer that analyzes ions by parallel flow ion mobility and by mass comprising: a mechanism that entrains the sample ions in a carrier gas; a mass spectrometer having a vacuum system with an extended ion funnel and a mass analyzer located inside the vacuum system; a mechanism that introduces the sample ions and the carrier gas into an entrance end of the extended ion funnel, the vacuum system drawing the carrier gas and the sample ions through the extended ion funnel to an exit end of the extended ion funnel and towards the mass analyzer; wherein the extended ion funnel is constructed with a plurality of segmented electrodes that are connected to an RF voltage source so that an ion focusing section is formed inside the extended ion funnel near the entrance end and an ion mobility analyzing section with an RF containment field is formed inside the extended ion funnel near the exit end and the sample ions are separated by ion mobility as they move through the extended ion funnel.