FAIMS apparatus having plural ion inlets and method therefore
US6753522B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2003 |
| Grant date | Jun 22, 2004 |
| Priority date | — |
| Expiry date | Feb 7, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/24
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed are an apparatus and a method for separating ions in the gas phase. An apparatus according to the instant invention includes a high field asymmetric waveform ion mobility spectrometer including an inner electrode having an outer surface and a length. The apparatus further includes an outer electrode having an inner surface and a length and surrounding the inner electrode over at least a portion of the length of the inner electrode, the inner electrode and the outer electrode defining an analyzer region therebetween and being disposed in a spaced apart arrangement for allowing ions to propagate therebetween. The outer electrode also includes an outlet from the analyzer region and at least a first ion inlet and a second distinct ion inlet into the analyzer region. The first ion inlet and the second distinct ion inlet are each for communicating with at least one ionization source. The inner electrode and the outer electrode are for providing an electric field within the analyzer region resulting from application of an asymmetric waveform voltage to at least one of the inner electrode and the outer electrode and from application of a compensation voltage to at least one of th…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.