Ion mobility spectrometer with device for generating ammonia gas
US9164059B2 · kind B2 · utility
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15Claims
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Inventor
Key dates
| Filing date | Apr 24, 2014 |
| Grant date | Oct 20, 2015 |
| Priority date | — |
| Expiry date | Apr 24, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/0013
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to ion mobility spectrometry, in particular to methods and devices for generating and delivering of ammonia gas as dopant into the ionization region of an ion mobility spectrometer. It provides an ion mobility spectrometer (IMS) with an ion source and device for generating ammonia gas, wherein the device comprises a dopant reservoir filled with alkali metal nitride or alkaline earth metal nitride, preferably lithium nitride and/or magnesium nitride, said reservoir being fluidly coupled to the ion source and to a water reservoir.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.