Angled chamber seal for atmospheric pressure ionization mass spectrometry
US5753910A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 12, 1996 |
| Grant date | May 19, 1998 |
| Priority date | — |
| Expiry date | Jul 12, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N30/7266
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An atmospheric pressure ionization source is provided which includes an ionization chamber that is formed from the combination of an angled chamber body and a correspondingly angled chamber seal. The ionization chamber is used for electrospray or atmospheric pressure chemical ionization of a liquid sample to provide ionized molecules. The ionized molecules can be passed to an associated analytical device that is capable of detecting and measuring the mass-to-charge ratio and/or the mass and charge of the molecules. A mass spectrometer which includes the present atmospheric pressure ionization source is also provided, as well as a liquid chromatography/mass spectrometry (LC/MS) analysis system which includes an LC/MS interface comprising the present atmospheric pressure ionization source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.