Ion mobility spectrometry-mass spectrometry (IMS-MS) with improved ion transmission and IMS resolution
US9455132B2 · kind B2 · utility
11Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 30, 2013 |
| Grant date | Sep 27, 2016 |
| Priority date | — |
| Expiry date | May 30, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/623
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An interface for an ion mobility spectrometry-mass spectrometry (IMS-MS) system includes a first ion guide for receiving ions from an IMS drift cell, and a second ion guide for receiving ions from the first ion guide, and positioned in a chamber separate from the first ion guide. Electrodes of the second ion guide subject the ions to an axial DC electric field while the second ion guide is held at a lower pressure than the first ion guide. In some embodiments, the first ion guide may be an ion funnel and the second ion guide may be a linear multipole device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.