Thermionic ionization detector with flow-through thermionic source
US5521098A · kind A · utility
4Cited by
10References
11Claims
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Key dates
| Filing date | Jul 27, 1994 |
| Grant date | May 28, 1996 |
| Priority date | — |
| Expiry date | Jul 27, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/647
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Method and apparatus for the thermionic ionization detection of one or more particular constituent components of a sample that is present in a fluid mixture. The fluid mixture flows across the interior surface of a central bore in a heated and appropriately sensitized "flow-through" thermionic source. The constituent components are ionized by an ionization process in which electrical charge is transferred from the thermionic source and converted into gas phase ion species. The current of gaseous ions is collected and measured at a collector electrode adjacent to the thermionic source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.