Chemical ionization reaction or proton transfer reaction mass spectrometry with a quadrupole mass spectrometer
US8003935B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 10, 2007 |
| Grant date | Aug 23, 2011 |
| Priority date | — |
| Expiry date | Oct 10, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/622
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and methods are described for generating reagent ions and product ions for use in a quadruple mass spectrometry system. A microwave or high-frequency RF energy source ionizes particles of a reagent vapor to form reagent ions. The reagent ions enter a chamber, such as a drift chamber, to interact with a fluid sample. An electric field directs the reagent ions and facilitates an interaction with the fluid sample to form product ions. The reagent ions and product ions then exit the chamber under the influence of an electric field for detection by a quadruple mass spectrometer module. The system includes various control modules for setting values of system parameters and analysis modules for detection of mass values for ion species during spectrometry and faults within the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.